Welcome to Math 240!
(additions to this web site no longer count towards good deed points)
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| #
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Week of...
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Notes and Links
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| 1
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Sep 8
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About This Class, What is this class about? (PDF, HTML), Monday, Wednesday
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| 2
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Sep 15
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HW1, Monday, Wednesday, TheComplexField.pdf,HW1_solutions.pdf
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| 3
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Sep 22
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HW2, Class Photo, Monday, Wednesday, HW2_solutions.pdf
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| 4
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Sep 29
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HW3, Wednesday, Tutorial, HW3_solutions.pdf
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| 5
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Oct 6
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HW4, Monday, Wednesday, Tutorial, HW4_solutions.pdf
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| 6
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Oct 13
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No Monday class (Thanksgiving), Wednesday, Tutorial
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| 7
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Oct 20
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HW5, Term Test at tutorials on Tuesday, Wednesday
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| 8
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Oct 27
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HW6, Monday, Why LinAlg?, Wednesday, Tutorial
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| 9
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Nov 3
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Monday is the last day to drop this class, HW7, Monday, Wednesday, Tutorial
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| 10
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Nov 10
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HW8, Monday, Tutorial
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| 11
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Nov 17
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Monday-Tuesday is UofT November break
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| 12
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Nov 24
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HW9
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| 13
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Dec 1
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Wednesday is a "makeup Monday"! End-of-Course Schedule, Tutorial
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| F
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Dec 8
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The Final Exam
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| Register of Good Deeds
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Add your name / see who's in!
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We went over "What is this class about?" (PDF, HTML), then over "About This Class", and then over the first few properties of real numbers that we will care about.
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Dror's notes above / Students' notes below
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The real numbers a set R
with 2 binary operations +, *
+:R*R→R
*:R*R→R
in addition 2 special element 0,1∈ R
s.t. 0≠1 & furthermore:
R1: The commutative law (for both addition and multiplication)
For every a,b∈R, we have
a+b=b+a & ab=ba
R2: The associative law
For every a,b,c∈R, we have
(a+b)+c=a+(b+c)
(ab)c=a(bc)
in our lives
pretty little girls
(PL)G≠P(LG)
R3: a+0=a & a*1=a
