Mathematics
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chi
  • Member for 8 years, 10 months
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Top posts
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All Questions Answers
Score Newest
answer
61
Why is the number of ways of choosing $0$ items from $n$ items $1$?
Oct 22, 2018
answer
33
"Naturally occurring" non-Hausdorff spaces?
Aug 3, 2020
answer
13
A basic inequality: $a-b\leq |a|+|b|$
Apr 14, 2016
answer
11
Is a function necessarily measurable, given that all of its level sets are measurable?
Dec 28, 2015
answer
9
Proving a recursive formula is indeed a function
May 23, 2022
answer
8
Questions about the definition of a Category
Feb 3, 2018
answer
8
Does the set of all programs form a group that acts on machine state (essentially, i.e. with a few exceptions)?
Jun 9
answer
6
Fixed point combinator (Y) and fixed point equation
Jan 4, 2016
answer
6
Is there a way to phrase "continuous" in terms of "connected"?
Jun 1, 2018
answer
4
Why is statement and its converse not equivalent?
Mar 6, 2016
Top network posts
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135
Equal (=) Vs left arrow (<-) symbols in haskell
104
Why are some programming languages "faster" or "slower" than others?
71
Why is `2 + x = 7` valid Haskell?
71
Why are some programming languages Turing complete but lack some abilities of other languages?
63
Turning A => M[B] into M[A => B]

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