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Blackboard Shots

Recent prefixes: Hogan 24-327 Martchenkov KAL SantosK Afeke Kuno VanDerVeen Boninger LiuJ LopezNeumann Lauda Bosch PoleDancing Dancso Boden

All prefixes: 08401 09240 10_327 11_1100 12_240 12_267 14_1100 15-344 15-475 16-1750 16-475 1617-257 17-1750 18-327 18S-AKT 2122-257 24-327 AKT09 AKT14 AKT17 Aarhus Abbasi Accra2010 Afeke Alekseev Alexakis Alhawaj Andersen Antolin Archibald BCHKW Bazett Beliakova Bellingeri Bettencourt Bigelow Blazejewski Boden Boninger Bosch Boyle Brin Brochier BrownF Bryden Burgos Caen Carrasco Carter Cattaneo Cheng Chterental Chu Cimasoni Conant Costantino Costello Dalvit Dancso Dema Deng Dolgushev Dror Enriquez Ens Etingof Faifman Fiedler Filmus Freedman Fresse Frohlich Frohman Furusho Gadanidis Gallagher Gaudreau Getzler Godin Gualtieri Gupta Halacheva Henriques Hillman Hirasawa Hoell Hogan Humbert Hurd Itai Izmaylov Jiang JohnsonFreyd KAL Kalka Kamnitzer Karshon Kashaev Katz Kauffman Kazhdan KhesinA Khovanov Kirk Koytcheff Kricker Kuno Kuperberg Lai Lambrechts Lauda LazyKnots Le LeD Ledvinka LeeP Leung LiBland LicataT LiuJ LopezNeumann Martchenkov Martel Martins Masbaum Massuyeau Matviichuk McKay McLellan Medabalimi Meusburger Mirny Miyazawa MorganS Morrison Morton-Ferguson Moskovich Mracek Munasinghe MurakamiJ Murphy Naef Nandakumar Nikolaev Ohtsuki Olah Orr Overbay Papakonstantinou Peng Penneys PoleDancing PolyPoly-1605 Polyak Putyra Ramakrishna Rasmussen Raynor Reed Remenik Reshetikhin RobertsonM Roukema Rushworth Samuelson SantosK Sazdanovic Schaveling Scherich Schneps Sela Selmani Severa Smirnov Spreer Stein Sternberg SummerHomology2017 Suzuki TangYC Thimotheus ThurstonD ToledanoLaredo Tsimerman VanDerVeen Vaughan Vergne VideoClub Vo WangH Willwacher Winter Yampolsky Yetter ZeilbergerN Zhang Zibrowius Zung deSilva wClips

Date-Time / Prefix Comment What? A collection of Blackboard Shots (7797, right now, with 200 prefixes), mostly taken in my office using a ceiling-mounted web camera.
Why? Mostly for my own use and for the use of the other people with whom I share blackboard space. And it is public because the easiest way to make something viewable to a number of people is to make it viewable to the whole world.
Oh no! If you found your handwriting here and you don't like it, please let me know and the relevant shot(s) will be removed, no questions asked.
How? A ceiling-mounted Logitech QuickCam Pro 9000 web camera is permanently pointed at my blackboard and connected via USB to this web server. The script bbs.php initiates a capture (using luvcview; hit "s" to shoot and "q" to quit), prompts for a file name prefix and a comment, and runs make. The makefile runs MakeDatabase.php (if necessary) to update the ShotDatabase.php. The latter file is used by index.php, which is this page, and also by show.php, used to display individual shots. The makefile also updates bbs.zip, which contains all the above mentioned scripts as well as common.php, showprefix.php, loadnew.php, random.php, the JavaScript actions.js, and the icon bbs.jpg. Finally, $\TeX$-like rendering uses MathJax (automatic on all pages but this one).
Exceptions. Some shots are taken by other means and are added manually or using loadnew.php.

241120-142816 / Hogan R4^wgh trivially holds.
241120-062923 / 24-327 Tue Nov 19 H31: Lifting properties (9).
241120-062922 / 24-327 Tue Nov 19 H31: Lifting properties (8).
241120-062921 / 24-327 Tue Nov 19 H31: Lifting properties (7).
241120-062920 / 24-327 Tue Nov 19 H31: Lifting properties (6).
241120-062919 / 24-327 Tue Nov 19 H31: Lifting properties (5).
241120-062918 / 24-327 Tue Nov 19 H31: Lifting properties (4).
241120-062917 / 24-327 Tue Nov 19 H31: Lifting properties (3).
241120-062916 / 24-327 Tue Nov 19 H31: Lifting properties (2).
241120-062915 / 24-327 Tue Nov 19 H31: Lifting properties.
241115-170402 / Martchenkov Relating Seifert and Dehn?
241114-162740 / 24-327 Thu Nov 14 H19-30: $\pi_1$, covering spaces (15).
241114-162739 / 24-327 Thu Nov 14 H19-30: $\pi_1$, covering spaces (14).
241114-162738 / 24-327 Thu Nov 14 H19-30: $\pi_1$, covering spaces (13).
241114-162737 / 24-327 Thu Nov 14 H19-30: $\pi_1$, covering spaces (12).
241114-162736 / 24-327 Thu Nov 14 H19-30: $\pi_1$, covering spaces (11).
241114-162735 / 24-327 Thu Nov 14 H19-30: $\pi_1$, covering spaces (10).
241114-162734 / 24-327 Thu Nov 14 H19-30: $\pi_1$, covering spaces (9).
241114-162733 / 24-327 Thu Nov 14 H19-30: $\pi_1$, covering spaces (8).
241114-162732 / 24-327 Thu Nov 14 H19-30: $\pi_1$, covering spaces (7).
241114-162731 / 24-327 Thu Nov 14 H19-30: $\pi_1$, covering spaces (6).
241114-162730 / 24-327 Thu Nov 14 H19-30: $\pi_1$, covering spaces (5).
241114-162729 / 24-327 Thu Nov 14 H19-30: $\pi_1$, covering spaces (4).
241114-162728 / 24-327 Thu Nov 14 H19-30: $\pi_1$, covering spaces (3).
241114-162727 / 24-327 Thu Nov 14 H19-30: $\pi_1$, covering spaces (2).
241114-162726 / 24-327 Thu Nov 14 H19-30: $\pi_1$, covering spaces.
241112-165040 / 24-327 Tue Nov 12 H28: More on path homotopies (9).
241112-165039 / 24-327 Tue Nov 12 H28: More on path homotopies (8).
241112-165038 / 24-327 Tue Nov 12 H28: More on path homotopies (7).
241112-165037 / 24-327 Tue Nov 12 H28: More on path homotopies (6).
241112-165036 / 24-327 Tue Nov 12 H28: More on path homotopies (5).
241112-165035 / 24-327 Tue Nov 12 H28: More on path homotopies (4).
Date-Time / Prefix Comment
241112-165034 / 24-327 Tue Nov 12 H28: More on path homotopies (3).
241112-165033 / 24-327 Tue Nov 12 H28: More on path homotopies (2).
241112-165032 / 24-327 Tue Nov 12 H28: More on path homotopies.
241107-162414 / 24-327 Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (17)
241107-162413 / 24-327 Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (16)
241107-162412 / 24-327 Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (15)
241107-162411 / 24-327 Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (14)
241107-162410 / 24-327 Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (13)
241107-162409 / 24-327 Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (12)
241107-162408 / 24-327 Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (11)
241107-162407 / 24-327 Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (10)
241107-162406 / 24-327 Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (9)
241107-162405 / 24-327 Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (8)
241107-162404 / 24-327 Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (7)
241107-162403 / 24-327 Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (6)
241107-162402 / 24-327 Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (5)
241107-162401 / 24-327 Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (4)
241107-162400 / 24-327 Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (3)
241107-162359 / 24-327 Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (2)
241107-162358 / 24-327 Thu Nov 7 H26-27: A bit on groups and a bit on homotopies
241105-161906 / 24-327 Tue Nov 5 H25: Uniform continuity and the Lebesgue number lemma, regrets (10).
241105-161905 / 24-327 Tue Nov 5 H25: Uniform continuity and the Lebesgue number lemma, regrets (9).
241105-161904 / 24-327 Tue Nov 5 H25: Uniform continuity and the Lebesgue number lemma, regrets (8).
241105-161903 / 24-327 Tue Nov 5 H25: Uniform continuity and the Lebesgue number lemma, regrets (7).
241105-161902 / 24-327 Tue Nov 5 H25: Uniform continuity and the Lebesgue number lemma, regrets (6).
241105-161901 / 24-327 Tue Nov 5 H25: Uniform continuity and the Lebesgue number lemma, regrets (5).
241105-161900 / 24-327 Tue Nov 5 H25: Uniform continuity and the Lebesgue number lemma, regrets (4).
241105-161859 / 24-327 Tue Nov 5 H25: Uniform continuity and the Lebesgue number lemma, regrets (3).
241105-161858 / 24-327 Tue Nov 5 H25: Uniform continuity and the Lebesgue number lemma, regrets (2).
241105-161857 / 24-327 Tue Nov 5 H25: Uniform continuity and the Lebesgue number lemma, regrets.
241101-134930 / KAL Daniel Martchenkov on Alexander modules (3).
241101-134929 / KAL Daniel Martchenkov on Alexander modules (2).
Date-Time / Prefix Comment
241101-134928 / KAL Daniel Martchenkov on Alexander modules.
241025-171129 / Martchenkov Burau and Alexander.
241025-134800 / KAL Traffic matrices and equivariant linking numbers.
241024-171201 / 24-327 Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (20).
241024-171200 / 24-327 Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (19).
241024-171159 / 24-327 Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (18).
241024-171158 / 24-327 Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (17).
241024-171157 / 24-327 Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (16).
241024-171156 / 24-327 Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (15).
241024-171155 / 24-327 Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (14).
241024-171154 / 24-327 Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (13).
241024-171153 / 24-327 Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (12).
241024-171152 / 24-327 Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (11).
241024-171151 / 24-327 Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (10).
241024-171150 / 24-327 Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (9).
241024-171149 / 24-327 Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (8).
241024-171148 / 24-327 Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (7).
241024-171147 / 24-327 Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (6).
241024-171146 / 24-327 Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (5).
241024-171145 / 24-327 Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (4).
241024-171144 / 24-327 Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (3).
241024-171143 / 24-327 Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (2).
241024-171142 / 24-327 Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$.
241022-165825 / 24-327 Oct 22 H22: Compactness basics (12).
241022-165824 / 24-327 Oct 22 H22: Compactness basics (11).
241022-165823 / 24-327 Oct 22 H22: Compactness basics (10).
241022-165822 / 24-327 Oct 22 H22: Compactness basics (9).
241022-165821 / 24-327 Oct 22 H22: Compactness basics (8).
241022-165820 / 24-327 Oct 22 H22: Compactness basics (7).
241022-165819 / 24-327 Oct 22 H22: Compactness basics (6).
241022-165818 / 24-327 Oct 22 H22: Compactness basics (5).
241022-165817 / 24-327 Oct 22 H22: Compactness basics (4).
Date-Time / Prefix Comment
241022-165816 / 24-327 Oct 22 H22: Compactness basics (3).
241022-165815 / 24-327 Oct 22 H22: Compactness basics (2).
241022-165814 / 24-327 Oct 22 H22: Compactness basics.
241019-080032 / 24-327 Connectedness and products (19).
241019-080031 / 24-327 Connectedness and products (18).
241019-080030 / 24-327 Connectedness and products (17).
241019-080029 / 24-327 Connectedness and products (16).
241019-080028 / 24-327 Connectedness and products (15).
241019-080027 / 24-327 Connectedness and products (14).
241019-080026 / 24-327 Connectedness and products (13).
241019-080025 / 24-327 Connectedness and products (12).
241019-080024 / 24-327 Connectedness and products (11).
241019-080023 / 24-327 Connectedness and products (10).
241019-080022 / 24-327 Connectedness and products (9).
241019-080021 / 24-327 Connectedness and products (8).
241019-080020 / 24-327 Connectedness and products (7).
241019-080019 / 24-327 Connectedness and products (6).
241019-080018 / 24-327 Connectedness and products (5).
241019-080017 / 24-327 Connectedness and products (4).
241019-080016 / 24-327 Connectedness and products (3).
241019-080015 / 24-327 Connectedness and products (2).
241019-080014 / 24-327 Connectedness and products.
241016-150259 / Hogan A conjecture for ${\mathcal A}^{wgh}$ (2).
241016-123142 / SantosK $T$ and $z$.
241015-212829 / 24-327 Tue Oct 15 H19: Connected spaces (10).
241015-212828 / 24-327 Tue Oct 15 H19: Connected spaces (9).
241015-212827 / 24-327 Tue Oct 15 H19: Connected spaces (8).
241015-212826 / 24-327 Tue Oct 15 H19: Connected spaces (7).
241015-212825 / 24-327 Tue Oct 15 H19: Connected spaces (6).
241015-212824 / 24-327 Tue Oct 15 H19: Connected spaces (5).
241015-212823 / 24-327 Tue Oct 15 H19: Connected spaces (4).
241015-212822 / 24-327 Tue Oct 15 H19: Connected spaces (3).
Date-Time / Prefix Comment
241015-212821 / 24-327 Tue Oct 15 H19: Connected spaces (2).
241015-212820 / 24-327 Tue Oct 15 H19: Connected spaces.
241011-141247 / Martchenkov The Seifert presentation (3).
241011-141246 / Martchenkov The Seifert presentation (2).
241011-141211 / KAL Dreams on integration and Seifert surfaces.
241010-173958 / 24-327 Thu Oct 10 H17-18: Quotient spaces, connected spaces (17).
241010-173957 / 24-327 Thu Oct 10 H17-18: Quotient spaces, connected spaces (16).
241010-173956 / 24-327 Thu Oct 10 H17-18: Quotient spaces, connected spaces (15).
241010-173955 / 24-327 Thu Oct 10 H17-18: Quotient spaces, connected spaces (14).
241010-173954 / 24-327 Thu Oct 10 H17-18: Quotient spaces, connected spaces (13).
241010-173953 / 24-327 Thu Oct 10 H17-18: Quotient spaces, connected spaces (12).
241010-173952 / 24-327 Thu Oct 10 H17-18: Quotient spaces, connected spaces (11).
241010-173951 / 24-327 Thu Oct 10 H17-18: Quotient spaces, connected spaces (10).
241010-173950 / 24-327 Thu Oct 10 H17-18: Quotient spaces, connected spaces (9).
241010-173949 / 24-327 Thu Oct 10 H17-18: Quotient spaces, connected spaces (8).
241010-173948 / 24-327 Thu Oct 10 H17-18: Quotient spaces, connected spaces (7).
241010-173947 / 24-327 Thu Oct 10 H17-18: Quotient spaces, connected spaces (6).
241010-173946 / 24-327 Thu Oct 10 H17-18: Quotient spaces, connected spaces (5).
241010-173945 / 24-327 Thu Oct 10 H17-18: Quotient spaces, connected spaces (4).
241010-173944 / 24-327 Thu Oct 10 H17-18: Quotient spaces, connected spaces (3).
241010-173943 / 24-327 Thu Oct 10 H17-18: Quotient spaces, connected spaces (2).
241010-173942 / 24-327 Thu Oct 10 H17-18: Quotient spaces, connected spaces.
241009-145702 / Hogan A conjecture for ${\mathcal A}^{wgh}$.
241009-062543 / 24-327 Tue Oct 8 H16: Metrizabilifty and products, quotient spaces (9).
241009-062542 / 24-327 Tue Oct 8 H16: Metrizabilifty and products, quotient spaces (8).
241009-062541 / 24-327 Tue Oct 8 H16: Metrizabilifty and products, quotient spaces (7).
241009-062540 / 24-327 Tue Oct 8 H16: Metrizabilifty and products, quotient spaces (6).
241009-062539 / 24-327 Tue Oct 8 H16: Metrizabilifty and products, quotient spaces (5).
241009-062538 / 24-327 Tue Oct 8 H16: Metrizabilifty and products, quotient spaces (4).
241009-062537 / 24-327 Tue Oct 8 H16: Metrizabilifty and products, quotient spaces (3).
241009-062536 / 24-327 Tue Oct 8 H16: Metrizabilifty and products, quotient spaces (2).
241009-062535 / 24-327 Tue Oct 8 H16: Metrizabilifty and products, quotient spaces.
Date-Time / Prefix Comment
241003-185843 / 24-327 Thu Oct 3 H14-15: Metrizability, sequential closure, and products (19).
241003-185842 / 24-327 Thu Oct 3 H14-15: Metrizability, sequential closure, and products (18).
241003-185841 / 24-327 Thu Oct 3 H14-15: Metrizability, sequential closure, and products (17).
241003-185840 / 24-327 Thu Oct 3 H14-15: Metrizability, sequential closure, and products (16).
241003-185839 / 24-327 Thu Oct 3 H14-15: Metrizability, sequential closure, and products (15).
241003-185838 / 24-327 Thu Oct 3 H14-15: Metrizability, sequential closure, and products (14).
241003-185837 / 24-327 Thu Oct 3 H14-15: Metrizability, sequential closure, and products (13).
241003-185836 / 24-327 Thu Oct 3 H14-15: Metrizability, sequential closure, and products (12).
241003-185835 / 24-327 Thu Oct 3 H14-15: Metrizability, sequential closure, and products (11).
241003-185834 / 24-327 Thu Oct 3 H14-15: Metrizability, sequential closure, and products (10).
241003-185833 / 24-327 Thu Oct 3 H14-15: Metrizability, sequential closure, and products (9).
241003-185832 / 24-327 Thu Oct 3 H14-15: Metrizability, sequential closure, and products (8).
241003-185831 / 24-327 Thu Oct 3 H14-15: Metrizability, sequential closure, and products (7).
241003-185830 / 24-327 Thu Oct 3 H14-15: Metrizability, sequential closure, and products (6).
241003-185829 / 24-327 Thu Oct 3 H14-15: Metrizability, sequential closure, and products (5).
241003-185828 / 24-327 Thu Oct 3 H14-15: Metrizability, sequential closure, and products (4).
241003-185827 / 24-327 Thu Oct 3 H14-15: Metrizability, sequential closure, and products (3).
241003-185826 / 24-327 Thu Oct 3 H14-15: Metrizability, sequential closure, and products (2).
241003-185825 / 24-327 Thu Oct 3 H14-15: Metrizability, sequential closure, and products.
241002-151114 / Hogan $\hat{b}$ is an isomorphism in the w case?
241001-163841 / 24-327 Tue Oct 1 H13: Products, metric spaces (6).
241001-163840 / 24-327 Tue Oct 1 H13: Products, metric spaces (5).
241001-163839 / 24-327 Tue Oct 1 H13: Products, metric spaces (4).
241001-163838 / 24-327 Tue Oct 1 H13: Products, metric spaces (3).
241001-163837 / 24-327 Tue Oct 1 H13: Products, metric spaces (2).
241001-163836 / 24-327 Tue Oct 1 H13: Products, metric spaces.
240927-141129 / 24-327 Continuity, products and the axiom of Choice, the box and the cylinder topology (18).
240927-141128 / 24-327 Continuity, products and the axiom of Choice, the box and the cylinder topology (17).
240927-141127 / 24-327 Continuity, products and the axiom of Choice, the box and the cylinder topology (16).
240927-141126 / 24-327 Continuity, products and the axiom of Choice, the box and the cylinder topology (15).
240927-141125 / 24-327 Continuity, products and the axiom of Choice, the box and the cylinder topology (14).
240927-141124 / 24-327 Continuity, products and the axiom of Choice, the box and the cylinder topology (13).
Date-Time / Prefix Comment
240927-141123 / 24-327 Continuity, products and the axiom of Choice, the box and the cylinder topology (12).
240927-141122 / 24-327 Continuity, products and the axiom of Choice, the box and the cylinder topology (11).
240927-141121 / 24-327 Continuity, products and the axiom of Choice, the box and the cylinder topology (10).
240927-141120 / 24-327 Continuity, products and the axiom of Choice, the box and the cylinder topology (9).
240927-141119 / 24-327 Continuity, products and the axiom of Choice, the box and the cylinder topology (8).
240927-141118 / 24-327 Continuity, products and the axiom of Choice, the box and the cylinder topology (7).
240927-141117 / 24-327 Continuity, products and the axiom of Choice, the box and the cylinder topology (6).
240927-141116 / 24-327 Continuity, products and the axiom of Choice, the box and the cylinder topology (5).
240927-141115 / 24-327 Continuity, products and the axiom of Choice, the box and the cylinder topology (4).
240927-141114 / 24-327 Continuity, products and the axiom of Choice, the box and the cylinder topology (3).
240927-141113 / 24-327 Continuity, products and the axiom of Choice, the box and the cylinder topology (2).
240927-141112 / 24-327 Continuity, products and the axiom of Choice, the box and the cylinder topology.
240927-131648 / KAL Kevin on the arrow polynomial (3).
240927-131647 / KAL Kevin on the arrow polynomial (2).
240927-131646 / KAL Kevin on the arrow polynomial.
240925-151155 / Hogan Emergent KV.
240925-061656 / 24-327 Class of Tuesday Septembet 24: Limit points, Hausdorff spaces (10).
240925-061655 / 24-327 Class of Tuesday Septembet 24: Limit points, Hausdorff spaces (9).
240925-061654 / 24-327 Class of Tuesday Septembet 24: Limit points, Hausdorff spaces (8).
240925-061653 / 24-327 Class of Tuesday Septembet 24: Limit points, Hausdorff spaces (7).
240925-061652 / 24-327 Class of Tuesday Septembet 24: Limit points, Hausdorff spaces (6).
240925-061651 / 24-327 Class of Tuesday Septembet 24: Limit points, Hausdorff spaces (5).
240925-061650 / 24-327 Class of Tuesday Septembet 24: Limit points, Hausdorff spaces (4).
240925-061649 / 24-327 Class of Tuesday Septembet 24: Limit points, Hausdorff spaces (3).
240925-061648 / 24-327 Class of Tuesday Septembet 24: Limit points, Hausdorff spaces (2).
240925-061647 / 24-327 Class of Tuesday Septembet 24: Limit points, Hausdorff spaces.
240920-134612 / KAL Ribbon and slice knots (2).
240920-134611 / KAL Ribbon and slice knots.
240919-221641 / 24-327 Class of Thursday September 19: Closed sets (17).
240919-221639 / 24-327 Class of Thursday September 19: Closed sets (16).
240919-221638 / 24-327 Class of Thursday September 19: Closed sets (15).
240919-221637 / 24-327 Class of Thursday September 19: Closed sets (14).
Date-Time / Prefix Comment
240919-221636 / 24-327 Class of Thursday September 19: Closed sets (13).
240919-221635 / 24-327 Class of Thursday September 19: Closed sets (12).
240919-221634 / 24-327 Class of Thursday September 19: Closed sets (11).
240919-221633 / 24-327 Class of Thursday September 19: Closed sets (10).
240919-221632 / 24-327 Class of Thursday September 19: Closed sets (9).
240919-221631 / 24-327 Class of Thursday September 19: Closed sets (8).
240919-221630 / 24-327 Class of Thursday September 19: Closed sets (7).
240919-221629 / 24-327 Class of Thursday September 19: Closed sets (6).
240919-221628 / 24-327 Class of Thursday September 19: Closed sets (5).
240919-221627 / 24-327 Class of Thursday September 19: Closed sets (4).
240919-221626 / 24-327 Class of Thursday September 19: Closed sets (3).
240919-221625 / 24-327 Class of Thursday September 19: Closed sets (2).
240919-221624 / 24-327 Class of Thursday September 19: Closed sets.
240917-163034 / 24-327 Class of Tuesday September 17: Mostly the subspace topology (8).
240917-163033 / 24-327 Class of Tuesday September 17: Mostly the subspace topology (7).
240917-163032 / 24-327 Class of Tuesday September 17: Mostly the subspace topology (6).
240917-163031 / 24-327 Class of Tuesday September 17: Mostly the subspace topology (5).
240917-163030 / 24-327 Class of Tuesday September 17: Mostly the subspace topology (4).
240917-163029 / 24-327 Class of Tuesday September 17: Mostly the subspace topology (3).
240917-163028 / 24-327 Class of Tuesday September 17: Mostly the subspace topology (2).
240917-163027 / 24-327 Class of Tuesday September 17: Mostly the subspace topology.
240913-142411 / Afeke Proof of the stitching formula (2).
240913-142410 / Afeke Proof of the stitching formula.
240912-183855 / 24-327 Class of Thursday September 12: Bases, Orders, Products (18).
240912-183854 / 24-327 Class of Thursday September 12: Bases, Orders, Products (17).
240912-183853 / 24-327 Class of Thursday September 12: Bases, Orders, Products (16).
240912-183852 / 24-327 Class of Thursday September 12: Bases, Orders, Products (15).
240912-183851 / 24-327 Class of Thursday September 12: Bases, Orders, Products (14).
240912-183850 / 24-327 Class of Thursday September 12: Bases, Orders, Products (13).
240912-183849 / 24-327 Class of Thursday September 12: Bases, Orders, Products (12).
240912-183848 / 24-327 Class of Thursday September 12: Bases, Orders, Products (11).
240912-183847 / 24-327 Class of Thursday September 12: Bases, Orders, Products (10).

Date-Time / Prefix	Comment	What? A collection of Blackboard Shots (7797, right now, with 200 prefixes), mostly taken in my office using a ceiling-mounted web camera. Why? Mostly for my own use and for the use of the other people with whom I share blackboard space. And it is public because the easiest way to make something viewable to a number of people is to make it viewable to the whole world. Oh no! If you found your handwriting here and you don't like it, please let me know and the relevant shot(s) will be removed, no questions asked. How? A ceiling-mounted Logitech QuickCam Pro 9000 web camera is permanently pointed at my blackboard and connected via USB to this web server. The script bbs.php initiates a capture (using luvcview; hit "s" to shoot and "q" to quit), prompts for a file name prefix and a comment, and runs make. The makefile runs MakeDatabase.php (if necessary) to update the ShotDatabase.php. The latter file is used by index.php, which is this page, and also by show.php, used to display individual shots. The makefile also updates bbs.zip, which contains all the above mentioned scripts as well as common.php, showprefix.php, loadnew.php, random.php, the JavaScript actions.js, and the icon bbs.jpg. Finally, $\TeX$-like rendering uses MathJax (automatic on all pages but this one). Exceptions. Some shots are taken by other means and are added manually or using loadnew.php.
241120-142816 / Hogan	R4^wgh trivially holds.
241120-062923 / 24-327	Tue Nov 19 H31: Lifting properties (9).
241120-062922 / 24-327	Tue Nov 19 H31: Lifting properties (8).
241120-062921 / 24-327	Tue Nov 19 H31: Lifting properties (7).
241120-062920 / 24-327	Tue Nov 19 H31: Lifting properties (6).
241120-062919 / 24-327	Tue Nov 19 H31: Lifting properties (5).
241120-062918 / 24-327	Tue Nov 19 H31: Lifting properties (4).
241120-062917 / 24-327	Tue Nov 19 H31: Lifting properties (3).
241120-062916 / 24-327	Tue Nov 19 H31: Lifting properties (2).
241120-062915 / 24-327	Tue Nov 19 H31: Lifting properties.
241115-170402 / Martchenkov	Relating Seifert and Dehn?
241114-162740 / 24-327	Thu Nov 14 H19-30: $\pi_1$, covering spaces (15).
241114-162739 / 24-327	Thu Nov 14 H19-30: $\pi_1$, covering spaces (14).
241114-162738 / 24-327	Thu Nov 14 H19-30: $\pi_1$, covering spaces (13).
241114-162737 / 24-327	Thu Nov 14 H19-30: $\pi_1$, covering spaces (12).
241114-162736 / 24-327	Thu Nov 14 H19-30: $\pi_1$, covering spaces (11).
241114-162735 / 24-327	Thu Nov 14 H19-30: $\pi_1$, covering spaces (10).
241114-162734 / 24-327	Thu Nov 14 H19-30: $\pi_1$, covering spaces (9).
241114-162733 / 24-327	Thu Nov 14 H19-30: $\pi_1$, covering spaces (8).
241114-162732 / 24-327	Thu Nov 14 H19-30: $\pi_1$, covering spaces (7).
241114-162731 / 24-327	Thu Nov 14 H19-30: $\pi_1$, covering spaces (6).
241114-162730 / 24-327	Thu Nov 14 H19-30: $\pi_1$, covering spaces (5).
241114-162729 / 24-327	Thu Nov 14 H19-30: $\pi_1$, covering spaces (4).
241114-162728 / 24-327	Thu Nov 14 H19-30: $\pi_1$, covering spaces (3).
241114-162727 / 24-327	Thu Nov 14 H19-30: $\pi_1$, covering spaces (2).
241114-162726 / 24-327	Thu Nov 14 H19-30: $\pi_1$, covering spaces.
241112-165040 / 24-327	Tue Nov 12 H28: More on path homotopies (9).
241112-165039 / 24-327	Tue Nov 12 H28: More on path homotopies (8).
241112-165038 / 24-327	Tue Nov 12 H28: More on path homotopies (7).
241112-165037 / 24-327	Tue Nov 12 H28: More on path homotopies (6).
241112-165036 / 24-327	Tue Nov 12 H28: More on path homotopies (5).
241112-165035 / 24-327	Tue Nov 12 H28: More on path homotopies (4).
Date-Time / Prefix	Comment
241112-165034 / 24-327	Tue Nov 12 H28: More on path homotopies (3).
241112-165033 / 24-327	Tue Nov 12 H28: More on path homotopies (2).
241112-165032 / 24-327	Tue Nov 12 H28: More on path homotopies.
241107-162414 / 24-327	Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (17)
241107-162413 / 24-327	Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (16)
241107-162412 / 24-327	Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (15)
241107-162411 / 24-327	Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (14)
241107-162410 / 24-327	Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (13)
241107-162409 / 24-327	Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (12)
241107-162408 / 24-327	Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (11)
241107-162407 / 24-327	Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (10)
241107-162406 / 24-327	Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (9)
241107-162405 / 24-327	Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (8)
241107-162404 / 24-327	Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (7)
241107-162403 / 24-327	Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (6)
241107-162402 / 24-327	Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (5)
241107-162401 / 24-327	Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (4)
241107-162400 / 24-327	Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (3)
241107-162359 / 24-327	Thu Nov 7 H26-27: A bit on groups and a bit on homotopies (2)
241107-162358 / 24-327	Thu Nov 7 H26-27: A bit on groups and a bit on homotopies
241105-161906 / 24-327	Tue Nov 5 H25: Uniform continuity and the Lebesgue number lemma, regrets (10).
241105-161905 / 24-327	Tue Nov 5 H25: Uniform continuity and the Lebesgue number lemma, regrets (9).
241105-161904 / 24-327	Tue Nov 5 H25: Uniform continuity and the Lebesgue number lemma, regrets (8).
241105-161903 / 24-327	Tue Nov 5 H25: Uniform continuity and the Lebesgue number lemma, regrets (7).
241105-161902 / 24-327	Tue Nov 5 H25: Uniform continuity and the Lebesgue number lemma, regrets (6).
241105-161901 / 24-327	Tue Nov 5 H25: Uniform continuity and the Lebesgue number lemma, regrets (5).
241105-161900 / 24-327	Tue Nov 5 H25: Uniform continuity and the Lebesgue number lemma, regrets (4).
241105-161859 / 24-327	Tue Nov 5 H25: Uniform continuity and the Lebesgue number lemma, regrets (3).
241105-161858 / 24-327	Tue Nov 5 H25: Uniform continuity and the Lebesgue number lemma, regrets (2).
241105-161857 / 24-327	Tue Nov 5 H25: Uniform continuity and the Lebesgue number lemma, regrets.
241101-134930 / KAL	Daniel Martchenkov on Alexander modules (3).
241101-134929 / KAL	Daniel Martchenkov on Alexander modules (2).
Date-Time / Prefix	Comment
241101-134928 / KAL	Daniel Martchenkov on Alexander modules.
241025-171129 / Martchenkov	Burau and Alexander.
241025-134800 / KAL	Traffic matrices and equivariant linking numbers.
241024-171201 / 24-327	Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (20).
241024-171200 / 24-327	Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (19).
241024-171159 / 24-327	Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (18).
241024-171158 / 24-327	Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (17).
241024-171157 / 24-327	Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (16).
241024-171156 / 24-327	Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (15).
241024-171155 / 24-327	Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (14).
241024-171154 / 24-327	Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (13).
241024-171153 / 24-327	Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (12).
241024-171152 / 24-327	Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (11).
241024-171151 / 24-327	Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (10).
241024-171150 / 24-327	Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (9).
241024-171149 / 24-327	Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (8).
241024-171148 / 24-327	Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (7).
241024-171147 / 24-327	Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (6).
241024-171146 / 24-327	Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (5).
241024-171145 / 24-327	Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (4).
241024-171144 / 24-327	Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (3).
241024-171143 / 24-327	Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$ (2).
241024-171142 / 24-327	Thu Oct 24 H23-24: Compactness in ${\mathbb R}^n$.
241022-165825 / 24-327	Oct 22 H22: Compactness basics (12).
241022-165824 / 24-327	Oct 22 H22: Compactness basics (11).
241022-165823 / 24-327	Oct 22 H22: Compactness basics (10).
241022-165822 / 24-327	Oct 22 H22: Compactness basics (9).
241022-165821 / 24-327	Oct 22 H22: Compactness basics (8).
241022-165820 / 24-327	Oct 22 H22: Compactness basics (7).
241022-165819 / 24-327	Oct 22 H22: Compactness basics (6).
241022-165818 / 24-327	Oct 22 H22: Compactness basics (5).
241022-165817 / 24-327	Oct 22 H22: Compactness basics (4).
Date-Time / Prefix	Comment
241022-165816 / 24-327	Oct 22 H22: Compactness basics (3).
241022-165815 / 24-327	Oct 22 H22: Compactness basics (2).
241022-165814 / 24-327	Oct 22 H22: Compactness basics.
241019-080032 / 24-327	Connectedness and products (19).
241019-080031 / 24-327	Connectedness and products (18).
241019-080030 / 24-327	Connectedness and products (17).
241019-080029 / 24-327	Connectedness and products (16).
241019-080028 / 24-327	Connectedness and products (15).
241019-080027 / 24-327	Connectedness and products (14).
241019-080026 / 24-327	Connectedness and products (13).
241019-080025 / 24-327	Connectedness and products (12).
241019-080024 / 24-327	Connectedness and products (11).
241019-080023 / 24-327	Connectedness and products (10).
241019-080022 / 24-327	Connectedness and products (9).
241019-080021 / 24-327	Connectedness and products (8).
241019-080020 / 24-327	Connectedness and products (7).
241019-080019 / 24-327	Connectedness and products (6).
241019-080018 / 24-327	Connectedness and products (5).
241019-080017 / 24-327	Connectedness and products (4).
241019-080016 / 24-327	Connectedness and products (3).
241019-080015 / 24-327	Connectedness and products (2).
241019-080014 / 24-327	Connectedness and products.
241016-150259 / Hogan	A conjecture for ${\mathcal A}^{wgh}$ (2).
241016-123142 / SantosK	$T$ and $z$.
241015-212829 / 24-327	Tue Oct 15 H19: Connected spaces (10).
241015-212828 / 24-327	Tue Oct 15 H19: Connected spaces (9).
241015-212827 / 24-327	Tue Oct 15 H19: Connected spaces (8).
241015-212826 / 24-327	Tue Oct 15 H19: Connected spaces (7).
241015-212825 / 24-327	Tue Oct 15 H19: Connected spaces (6).
241015-212824 / 24-327	Tue Oct 15 H19: Connected spaces (5).
241015-212823 / 24-327	Tue Oct 15 H19: Connected spaces (4).
241015-212822 / 24-327	Tue Oct 15 H19: Connected spaces (3).
Date-Time / Prefix	Comment
241015-212821 / 24-327	Tue Oct 15 H19: Connected spaces (2).
241015-212820 / 24-327	Tue Oct 15 H19: Connected spaces.
241011-141247 / Martchenkov	The Seifert presentation (3).
241011-141246 / Martchenkov	The Seifert presentation (2).
241011-141211 / KAL	Dreams on integration and Seifert surfaces.
241010-173958 / 24-327	Thu Oct 10 H17-18: Quotient spaces, connected spaces (17).
241010-173957 / 24-327	Thu Oct 10 H17-18: Quotient spaces, connected spaces (16).
241010-173956 / 24-327	Thu Oct 10 H17-18: Quotient spaces, connected spaces (15).
241010-173955 / 24-327	Thu Oct 10 H17-18: Quotient spaces, connected spaces (14).
241010-173954 / 24-327	Thu Oct 10 H17-18: Quotient spaces, connected spaces (13).
241010-173953 / 24-327	Thu Oct 10 H17-18: Quotient spaces, connected spaces (12).
241010-173952 / 24-327	Thu Oct 10 H17-18: Quotient spaces, connected spaces (11).
241010-173951 / 24-327	Thu Oct 10 H17-18: Quotient spaces, connected spaces (10).
241010-173950 / 24-327	Thu Oct 10 H17-18: Quotient spaces, connected spaces (9).
241010-173949 / 24-327	Thu Oct 10 H17-18: Quotient spaces, connected spaces (8).
241010-173948 / 24-327	Thu Oct 10 H17-18: Quotient spaces, connected spaces (7).
241010-173947 / 24-327	Thu Oct 10 H17-18: Quotient spaces, connected spaces (6).
241010-173946 / 24-327	Thu Oct 10 H17-18: Quotient spaces, connected spaces (5).
241010-173945 / 24-327	Thu Oct 10 H17-18: Quotient spaces, connected spaces (4).
241010-173944 / 24-327	Thu Oct 10 H17-18: Quotient spaces, connected spaces (3).
241010-173943 / 24-327	Thu Oct 10 H17-18: Quotient spaces, connected spaces (2).
241010-173942 / 24-327	Thu Oct 10 H17-18: Quotient spaces, connected spaces.
241009-145702 / Hogan	A conjecture for ${\mathcal A}^{wgh}$.
241009-062543 / 24-327	Tue Oct 8 H16: Metrizabilifty and products, quotient spaces (9).
241009-062542 / 24-327	Tue Oct 8 H16: Metrizabilifty and products, quotient spaces (8).
241009-062541 / 24-327	Tue Oct 8 H16: Metrizabilifty and products, quotient spaces (7).
241009-062540 / 24-327	Tue Oct 8 H16: Metrizabilifty and products, quotient spaces (6).
241009-062539 / 24-327	Tue Oct 8 H16: Metrizabilifty and products, quotient spaces (5).
241009-062538 / 24-327	Tue Oct 8 H16: Metrizabilifty and products, quotient spaces (4).
241009-062537 / 24-327	Tue Oct 8 H16: Metrizabilifty and products, quotient spaces (3).
241009-062536 / 24-327	Tue Oct 8 H16: Metrizabilifty and products, quotient spaces (2).
241009-062535 / 24-327	Tue Oct 8 H16: Metrizabilifty and products, quotient spaces.
Date-Time / Prefix	Comment
241003-185843 / 24-327	Thu Oct 3 H14-15: Metrizability, sequential closure, and products (19).
241003-185842 / 24-327	Thu Oct 3 H14-15: Metrizability, sequential closure, and products (18).
241003-185841 / 24-327	Thu Oct 3 H14-15: Metrizability, sequential closure, and products (17).
241003-185840 / 24-327	Thu Oct 3 H14-15: Metrizability, sequential closure, and products (16).
241003-185839 / 24-327	Thu Oct 3 H14-15: Metrizability, sequential closure, and products (15).
241003-185838 / 24-327	Thu Oct 3 H14-15: Metrizability, sequential closure, and products (14).
241003-185837 / 24-327	Thu Oct 3 H14-15: Metrizability, sequential closure, and products (13).
241003-185836 / 24-327	Thu Oct 3 H14-15: Metrizability, sequential closure, and products (12).
241003-185835 / 24-327	Thu Oct 3 H14-15: Metrizability, sequential closure, and products (11).
241003-185834 / 24-327	Thu Oct 3 H14-15: Metrizability, sequential closure, and products (10).
241003-185833 / 24-327	Thu Oct 3 H14-15: Metrizability, sequential closure, and products (9).
241003-185832 / 24-327	Thu Oct 3 H14-15: Metrizability, sequential closure, and products (8).
241003-185831 / 24-327	Thu Oct 3 H14-15: Metrizability, sequential closure, and products (7).
241003-185830 / 24-327	Thu Oct 3 H14-15: Metrizability, sequential closure, and products (6).
241003-185829 / 24-327	Thu Oct 3 H14-15: Metrizability, sequential closure, and products (5).
241003-185828 / 24-327	Thu Oct 3 H14-15: Metrizability, sequential closure, and products (4).
241003-185827 / 24-327	Thu Oct 3 H14-15: Metrizability, sequential closure, and products (3).
241003-185826 / 24-327	Thu Oct 3 H14-15: Metrizability, sequential closure, and products (2).
241003-185825 / 24-327	Thu Oct 3 H14-15: Metrizability, sequential closure, and products.
241002-151114 / Hogan	$\hat{b}$ is an isomorphism in the w case?
241001-163841 / 24-327	Tue Oct 1 H13: Products, metric spaces (6).
241001-163840 / 24-327	Tue Oct 1 H13: Products, metric spaces (5).
241001-163839 / 24-327	Tue Oct 1 H13: Products, metric spaces (4).
241001-163838 / 24-327	Tue Oct 1 H13: Products, metric spaces (3).
241001-163837 / 24-327	Tue Oct 1 H13: Products, metric spaces (2).
241001-163836 / 24-327	Tue Oct 1 H13: Products, metric spaces.
240927-141129 / 24-327	Continuity, products and the axiom of Choice, the box and the cylinder topology (18).
240927-141128 / 24-327	Continuity, products and the axiom of Choice, the box and the cylinder topology (17).
240927-141127 / 24-327	Continuity, products and the axiom of Choice, the box and the cylinder topology (16).
240927-141126 / 24-327	Continuity, products and the axiom of Choice, the box and the cylinder topology (15).
240927-141125 / 24-327	Continuity, products and the axiom of Choice, the box and the cylinder topology (14).
240927-141124 / 24-327	Continuity, products and the axiom of Choice, the box and the cylinder topology (13).
Date-Time / Prefix	Comment
240927-141123 / 24-327	Continuity, products and the axiom of Choice, the box and the cylinder topology (12).
240927-141122 / 24-327	Continuity, products and the axiom of Choice, the box and the cylinder topology (11).
240927-141121 / 24-327	Continuity, products and the axiom of Choice, the box and the cylinder topology (10).
240927-141120 / 24-327	Continuity, products and the axiom of Choice, the box and the cylinder topology (9).
240927-141119 / 24-327	Continuity, products and the axiom of Choice, the box and the cylinder topology (8).
240927-141118 / 24-327	Continuity, products and the axiom of Choice, the box and the cylinder topology (7).
240927-141117 / 24-327	Continuity, products and the axiom of Choice, the box and the cylinder topology (6).
240927-141116 / 24-327	Continuity, products and the axiom of Choice, the box and the cylinder topology (5).
240927-141115 / 24-327	Continuity, products and the axiom of Choice, the box and the cylinder topology (4).
240927-141114 / 24-327	Continuity, products and the axiom of Choice, the box and the cylinder topology (3).
240927-141113 / 24-327	Continuity, products and the axiom of Choice, the box and the cylinder topology (2).
240927-141112 / 24-327	Continuity, products and the axiom of Choice, the box and the cylinder topology.
240927-131648 / KAL	Kevin on the arrow polynomial (3).
240927-131647 / KAL	Kevin on the arrow polynomial (2).
240927-131646 / KAL	Kevin on the arrow polynomial.
240925-151155 / Hogan	Emergent KV.
240925-061656 / 24-327	Class of Tuesday Septembet 24: Limit points, Hausdorff spaces (10).
240925-061655 / 24-327	Class of Tuesday Septembet 24: Limit points, Hausdorff spaces (9).
240925-061654 / 24-327	Class of Tuesday Septembet 24: Limit points, Hausdorff spaces (8).
240925-061653 / 24-327	Class of Tuesday Septembet 24: Limit points, Hausdorff spaces (7).
240925-061652 / 24-327	Class of Tuesday Septembet 24: Limit points, Hausdorff spaces (6).
240925-061651 / 24-327	Class of Tuesday Septembet 24: Limit points, Hausdorff spaces (5).
240925-061650 / 24-327	Class of Tuesday Septembet 24: Limit points, Hausdorff spaces (4).
240925-061649 / 24-327	Class of Tuesday Septembet 24: Limit points, Hausdorff spaces (3).
240925-061648 / 24-327	Class of Tuesday Septembet 24: Limit points, Hausdorff spaces (2).
240925-061647 / 24-327	Class of Tuesday Septembet 24: Limit points, Hausdorff spaces.
240920-134612 / KAL	Ribbon and slice knots (2).
240920-134611 / KAL	Ribbon and slice knots.
240919-221641 / 24-327	Class of Thursday September 19: Closed sets (17).
240919-221639 / 24-327	Class of Thursday September 19: Closed sets (16).
240919-221638 / 24-327	Class of Thursday September 19: Closed sets (15).
240919-221637 / 24-327	Class of Thursday September 19: Closed sets (14).
Date-Time / Prefix	Comment
240919-221636 / 24-327	Class of Thursday September 19: Closed sets (13).
240919-221635 / 24-327	Class of Thursday September 19: Closed sets (12).
240919-221634 / 24-327	Class of Thursday September 19: Closed sets (11).
240919-221633 / 24-327	Class of Thursday September 19: Closed sets (10).
240919-221632 / 24-327	Class of Thursday September 19: Closed sets (9).
240919-221631 / 24-327	Class of Thursday September 19: Closed sets (8).
240919-221630 / 24-327	Class of Thursday September 19: Closed sets (7).
240919-221629 / 24-327	Class of Thursday September 19: Closed sets (6).
240919-221628 / 24-327	Class of Thursday September 19: Closed sets (5).
240919-221627 / 24-327	Class of Thursday September 19: Closed sets (4).
240919-221626 / 24-327	Class of Thursday September 19: Closed sets (3).
240919-221625 / 24-327	Class of Thursday September 19: Closed sets (2).
240919-221624 / 24-327	Class of Thursday September 19: Closed sets.
240917-163034 / 24-327	Class of Tuesday September 17: Mostly the subspace topology (8).
240917-163033 / 24-327	Class of Tuesday September 17: Mostly the subspace topology (7).
240917-163032 / 24-327	Class of Tuesday September 17: Mostly the subspace topology (6).
240917-163031 / 24-327	Class of Tuesday September 17: Mostly the subspace topology (5).
240917-163030 / 24-327	Class of Tuesday September 17: Mostly the subspace topology (4).
240917-163029 / 24-327	Class of Tuesday September 17: Mostly the subspace topology (3).
240917-163028 / 24-327	Class of Tuesday September 17: Mostly the subspace topology (2).
240917-163027 / 24-327	Class of Tuesday September 17: Mostly the subspace topology.
240913-142411 / Afeke	Proof of the stitching formula (2).
240913-142410 / Afeke	Proof of the stitching formula.
240912-183855 / 24-327	Class of Thursday September 12: Bases, Orders, Products (18).
240912-183854 / 24-327	Class of Thursday September 12: Bases, Orders, Products (17).
240912-183853 / 24-327	Class of Thursday September 12: Bases, Orders, Products (16).
240912-183852 / 24-327	Class of Thursday September 12: Bases, Orders, Products (15).
240912-183851 / 24-327	Class of Thursday September 12: Bases, Orders, Products (14).
240912-183850 / 24-327	Class of Thursday September 12: Bases, Orders, Products (13).
240912-183849 / 24-327	Class of Thursday September 12: Bases, Orders, Products (12).
240912-183848 / 24-327	Class of Thursday September 12: Bases, Orders, Products (11).
240912-183847 / 24-327	Class of Thursday September 12: Bases, Orders, Products (10).

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