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Apr
20
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23
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8
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30
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Jul
13
comment A proof in circles.
I suspect that any proof will involve the center of the circle but I'm not quite sure how to prove that.
Jul
13
answered A proof in circles.
Jul
13
comment A proof in circles.
CD=(3/4)AB? Is that a typo or am I misreading? You said at the beginning that CD=(1/2)AB.
Dec
27
answered Who are the most inspiring communicators of math for a general audience?
Oct
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May
24
revised Good Physical Demonstrations of Abstract Mathematics
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Jun
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comment Can you explain the “Axiom of choice” in simple terms?
Even though I didn't follow the details, I remembered what the Banach-Tarski theorem was, well enough to understand a visual joke in tonight's season premiere of Futurama, eight months later! Thanks!