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Q&A

General Q&A about all branches of theoretical and applied mathematics, including closely-adjacent sciences where the central question is about the math.

Filters (None)
60%
+1 −0
Interpreting $\text{Prop}$ in Set

1 answer  ·  posted 3d ago by user205‭  ·  last activity 2d ago by Derek Elkins‭

71%
+3 −0
71%
+3 −0
44%
+2 −3
Cyclical or “loop” fractals?

2 answers  ·  posted 4mo ago by Julius H.‭  ·  last activity 1mo ago by pbloem‭

66%
+2 −0
50%
+3 −3
Defining Bayes’s theorem from scratch in ZFC

1 answer  ·  posted 4mo ago by Julius H.‭  ·  last activity 3mo ago by xamidi‭

71%
+3 −0
Using convexity in the proof of Hölder’s inequality

1 answer  ·  posted 5mo ago by Snoopy‭  ·  last activity 3mo ago by Snoopy‭

22%
+0 −5
What are the Peano axioms?

1 answer  ·  posted 4mo ago by Julius H.‭  ·  last activity 3mo ago by rmf‭

66%
+2 −0
28%
+0 −3
40%
+0 −1
66%
+2 −0
matrix inverse of $I + A$ where $A$ is skew-symmetric

1 answer  ·  posted 4mo ago by Trevor‭  ·  last activity 4mo ago by Trevor‭

28%
+0 −3
What is a dual object? [closed]

0 answers  ·  posted 4mo ago by Julius H.‭  ·  closed 4mo ago by Peter Taylor‭

66%
+2 −0
37%
+1 −3
66%
+2 −0
The derivatives of a function at a boundary point

1 answer  ·  posted 5mo ago by tommi‭  ·  last activity 5mo ago by Snoopy‭

57%
+2 −1
60%
+1 −0
60%
+1 −0
71%
+3 −0
Is there a $(n_3)$ configuration which is not self-dual?

1 answer  ·  posted 6mo ago by WheatWizard‭  ·  last activity 6mo ago by Peter Taylor‭