Dror Bar-Natan: Classes: 2013-14: AKT-140404

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0:14:35 [add] Notices and reminders about expansions.

0:14:55 [add] General facts about $gr$.

0:23:27 [add] $A$-expansions.

0:37:47 [add] General algebraic structures.

0:47:53 [add] The case of tangles.

0:52:19 [add] Horizontal compositions, generating tangles.

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Videography by Iva Halacheva	troubleshooting

AKT-140404 Video