Question

Solutions to cubic and higher degree functions

score 33 · Answer 1 · 2026-04-22 01:56:39

33

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Solutions to cubic and higher degree functions

Published on 22 Apr 2026 - 1:56

score 271 · Answer 2 · 2026-04-09 14:24:48

271

Views

Proof verification of the Open Mapping Theorem

Published on 09 Apr 2026 - 14:24

score 32 · Answer 3 · 2026-04-11 00:03:02

32

Views

Infimum of Function

Published on 11 Apr 2026 - 0:03

score 172 · Answer 4 · 2026-04-13 20:15:03

172

Views

Check on a proof I saw on another thread: Metrizable Lindelöf spaces have a countable basis

Published on 13 Apr 2026 - 20:15

score 88 · Answer 5 · 2026-05-10 16:34:59

88

Views

Counting integers with a least prime factor greater than $x$ in a sequence of $x$ consecutive integers.

Published on 10 May 2026 - 16:34

score 119 · Answer 6 · 2026-04-16 02:44:11

119

Views

Prove that $\lim_{x\to\infty}\sum_{n=1}^{\infty}\frac x{n^2+x^2}$ exists and is positive

Published on 16 Apr 2026 - 2:44

score 67 · Answer 7 · 2026-04-15 13:13:26

67

Views

What's wrong with my proof that $f(x) = x^2, x^4, \ldots$ are bijective?

Published on 15 Apr 2026 - 13:13

score 248 · Answer 8 · 2026-04-16 13:06:23

248

Views

Prove by mathematical induction $4^n > n+1$

Published on 16 Apr 2026 - 13:06

score 160 · Answer 9 · 2026-04-15 19:06:33

160

Views

Proving almost uniform convergence of $ n\sin(\frac{x}{n}) $

Published on 15 Apr 2026 - 19:06

score 60 · Answer 10 · 2026-04-16 00:17:23

60

Views

Slightly alternative proof to the converse part of Cauchy's General Principle

Published on 16 Apr 2026 - 0:17

score 827 · Answer 11 · 2026-04-14 12:14:31

827

Views

Prove the orthogonal complement of a nonempty subset of a Hilbert space is closed.

Published on 14 Apr 2026 - 12:14

score 250 · Answer 12 · 2026-04-13 17:51:13

250

Views

Show that the Compact open topology on Hom(X,Y) is hausdorff

Published on 13 Apr 2026 - 17:51

score 32 · Answer 13 · 2026-04-15 07:14:26

32

Views

restriction operators and continuous maps from Hom(X,Y) to Hom(A,Y)

Published on 15 Apr 2026 - 7:14

score 106 · Answer 14 · 2026-04-16 22:39:09

106

Views

Proof Verification: Show that every compact metrizable space has a countable basis

Published on 16 Apr 2026 - 22:39

score 320 · Answer 15 · 2026-04-17 06:16:57

320

Views

Prove that $ \left \lfloor {\log n} \right \rfloor = \left \lfloor {\log \left \lceil \frac {n-1}{2}\right \rceil} \right \rfloor + 1$

Published on 17 Apr 2026 - 6:16

List Question

Solutions to cubic and higher degree functions

Proof verification of the Open Mapping Theorem

Infimum of Function

Check on a proof I saw on another thread: Metrizable Lindelöf spaces have a countable basis

Counting integers with a least prime factor greater than $x$ in a sequence of $x$ consecutive integers.

Prove that $\lim_{x\to\infty}\sum_{n=1}^{\infty}\frac x{n^2+x^2}$ exists and is positive

What's wrong with my proof that $f(x) = x^2, x^4, \ldots$ are bijective?

Prove by mathematical induction $4^n > n+1$

Proving almost uniform convergence of $ n\sin(\frac{x}{n}) $

Slightly alternative proof to the converse part of Cauchy's General Principle

Prove the orthogonal complement of a nonempty subset of a Hilbert space is closed.

Show that the Compact open topology on Hom(X,Y) is hausdorff

restriction operators and continuous maps from Hom(X,Y) to Hom(A,Y)

Proof Verification: Show that every compact metrizable space has a countable basis

Prove that $ \left \lfloor {\log n} \right \rfloor = \left \lfloor {\log \left \lceil \frac {n-1}{2}\right \rceil} \right \rfloor + 1$

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