Andrew Critch

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Name Andrew Critch
Member for 5 months
Seen Mar 14 at 4:54
Website
Location UC Berkeley
Age 23
2004-2006: Memorial University (BSc)
2006-2008: University of Toronto (MSc)
2008-201?: UC Berkeley (PhD)
21

Questions
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What’s a non-abelian totally ordered group?

nov 10 at 16:48 DC 1,247●8

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Does finite math need the Axiom of Infinity?

oct 16 at 7:33 Kenny Easwaran 565●7

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32

Answers
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19
Why are flat morphisms “flat?”
16
What is a section?
14
Why do Groups and Abelian Groups feel so different?
11
What is an intuitive view of adjoints? (version 1: category theory)
10
Why is it a good idea to study a ring by studying its modules?
9
Finite type/finite morphism
7
How do I check if a functor has a (left/right) adjoint?
7
How is it that you can guess if one of a pair of random numbers is larger with probability > 1/2?
6
What representative examples of modules should I keep in mind?
5
Category theory sans (much) motivation?
5
When does “splits” imply “cosplits”?
5
Freeing a sphere from within a sphere
4
Motivating the Laplace transform definition
4
What do models where the CH is false look like?
3
Does Cantor-Bernstein hold for classes?
3
Non-quasi separated morphisms
3
What are the Benefits of Using Algebraic Spaces over Schemes?
3
Sheaf cohomology and injective resolutions
3
How can I really motivate the Zariski topology on a scheme?
3
Assumptions on the category C for sheafification of C-valued presheaves
3
Cogroup Objects
2
Differentiable function germs on differentiable manifolds
2
When to pick a basis?
2
Minimal axiom system for a set of provable statements
2
Elementary solutions to f(z+1)-f(z)=g(z) in entire functions
2
What is the base change in number theory?
1
Change of basis with Multilinear fucntion
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Can adjoint linear transformations be naturally realized as adjoint functors?
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Nature of Invertible Sheaves in which there are no global sections.
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Non-conjugate words with the same trace
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