Question

Using induction to prove the multiplication rule

score 1.6k · Answer 1 · 2026-04-11 07:56:38

1.6k

Views

Using induction to prove the multiplication rule

Published on 11 Apr 2026 - 7:56

score 230 · Answer 2 · 2026-04-09 18:29:22

230

Views

Is there a simpler proof of this fact in analysis?

Published on 09 Apr 2026 - 18:29

score 872 · Answer 3 · 2026-04-09 13:57:29

872

Views

What is wrong with my proof by contradiction that if $n^2$ is divisible by 3, then $n^2$ is divisible by 9?

Published on 09 Apr 2026 - 13:57

score 874 · Answer 4 · 2026-04-16 07:02:12

874

Views

Any finite dimensional normed linear space over a complete field is complete.

Published on 16 Apr 2026 - 7:02

score 1k · Answer 5 · 2026-04-11 09:16:12

1k

Views

Prove that $K$ is a compact set by directly using the definition of compactness.

Published on 11 Apr 2026 - 9:16

score 230 · Answer 6 · 2026-04-15 01:54:50

230

Views

Limits in a product category: proof verification

Published on 15 Apr 2026 - 1:54

score 847 · Answer 7 · 2026-04-12 01:38:06

847

Views

Use the Lebesgue number lemma to prove that $f$ is uniformly continuous if $M$ is compact and $f$ continuous

Published on 12 Apr 2026 - 1:38

score 417 · Answer 8 · 2026-04-15 07:18:45

417

Views

Nested descreasing intersection of nonempty covering compact sets is nonempty (check proof)

Published on 15 Apr 2026 - 7:18

score 320 · Answer 9 · 2026-04-14 08:07:49

320

Views

flux of $\langle x,y,z^2\rangle$ across unit sphere

Published on 14 Apr 2026 - 8:07

score 1.6k · Answer 10 · 2026-04-15 12:43:47

1.6k

Views

proving that an arithmetic sequence is equal to a geometric sequence

Published on 15 Apr 2026 - 12:43

score 956 · Answer 11 · 2026-04-16 11:22:57

956

Views

Delta Epsilon Proof of $\lim_{x\to\infty}\frac{\ln{x}^2}{x}=0$

Published on 16 Apr 2026 - 11:22

score 36 · Answer 12 · 2026-04-09 06:21:46

36

Views

Inductive proof verification

Published on 09 Apr 2026 - 6:21

score 1.2k · Answer 13 · 2026-04-14 13:04:06

1.2k

Views

Proof that basis is linearly generating set of some subspace $V$.

Published on 14 Apr 2026 - 13:04

score 391 · Answer 14 · 2026-04-12 02:31:51

391

Views

Determine the maximal ideals of $\mathbb R^2$ by determining all its ideals.

Published on 12 Apr 2026 - 2:31

score 694 · Answer 15 · 2026-04-28 19:03:56

694

Views

Proof that if $\sqrt {ab}$ is rational then $\sqrt {\frac{a}{b}}$ is also rational.

Published on 28 Apr 2026 - 19:03

List Question

Using induction to prove the multiplication rule

Is there a simpler proof of this fact in analysis?

What is wrong with my proof by contradiction that if $n^2$ is divisible by 3, then $n^2$ is divisible by 9?

Any finite dimensional normed linear space over a complete field is complete.

Prove that $K$ is a compact set by directly using the definition of compactness.

Limits in a product category: proof verification

Use the Lebesgue number lemma to prove that $f$ is uniformly continuous if $M$ is compact and $f$ continuous

Nested descreasing intersection of nonempty covering compact sets is nonempty (check proof)

flux of $\langle x,y,z^2\rangle$ across unit sphere

proving that an arithmetic sequence is equal to a geometric sequence

Delta Epsilon Proof of $\lim_{x\to\infty}\frac{\ln{x}^2}{x}=0$

Inductive proof verification

Proof that basis is linearly generating set of some subspace $V$.

Determine the maximal ideals of $\mathbb R^2$ by determining all its ideals.

Proof that if $\sqrt {ab}$ is rational then $\sqrt {\frac{a}{b}}$ is also rational.

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