17

Answers
votes newest views recent
17
Set theories without “junk” theorems?
15
Kuratowski’s definition of ordered pairs
14
Why don’t ideals and quotients work well for categories?
13
Examples of interesting false proofs
10
Natural transformations as categorical homotopies
5
What does it mean geometrically that an element in a domain is irreducible?
4
Why do we ignore non-standard finite sets in ordinary mathematics?
3
Symbolic powers in regular local rings
2
Can ZFC prove “false theorems”, and still be consistent? (was “Junk Theorems” follow up)
1
two real closed fields- algebraic elements
1
Reasonable implementation of finding Gröbner bases over non-field coefficient rings
1
Fastest way to factor integers < 2^60
1
Cayley’s Theorem and the Yoneda Lemma
1
Definition of Initial&Terminal Objects in an ``Object-Free'' Category
0
Understanding the countable ordinals up to $\epsilon_{0}$
0
Why is the exterior differentiation operator sometimes visualized as the “boundary”?
0
How much larger is the powerset of a transfinite set?