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Keith's user avatar
Keith's user avatar
Keith
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I do maths for fun. Currently an undergraduate CS major.

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30
When is 2 qualitatively different from 3?
Nov 9, 2024
24
Does $x^3 + 1$ factor as a functor?
Apr 14
13
Outer semidirect product
Aug 7, 2024
12
Is there a theory of completions of semirings similar to $I$-adic completions of rings?
Nov 27, 2024
9
The reals: a topological lattice in more than the obvious way?
Oct 21, 2024
9
Does the pseudo-arc have an interesting continuous algebraic structure?
Mar 28
7
How do these two notions of a category of ultrafilters compare?
Feb 25
6
Resource on how the definitions of subobjects for various categories can vary
Jul 25, 2024
6
Automorphisms of powers of finite simple groups
Aug 6, 2024
6
What is category theory's perspective on (binary) subdirect products and congruence-permutability?
Dec 30, 2024
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25
How many continuous maps commute with $1 - |2x - 1|$ on $[0, 1]$?