Question

Are there proofs in math which can't be verified by a single person in their life span (say $80$ years)?

score 373 · Answer 1 · 2026-04-11 15:38:12

373

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Are there proofs in math which can't be verified by a single person in their life span (say $80$ years)?

Published on 11 Apr 2026 - 15:38

score 1.2k · Answer 2 · 2026-03-25 11:16:30

1.2k

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Prove that if $G$ is a cyclic group of order $n$, then $G$ is isomorphic to $\mathbb{Z}_{n}$.

Published on 25 Mar 2026 - 11:16

score 199 · Answer 3 · 2026-03-26 05:54:23

199

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Proof help: Induction ( $ 1/ \sqrt1 + 1/\sqrt2 +....+1/\sqrt{n}$ $< \sqrt{n}$ ) for $n>1$

Published on 26 Mar 2026 - 5:54

score 208 · Answer 4 · 2026-04-09 07:31:54

208

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Prove that three paraboloids have a common tangent plane

Published on 09 Apr 2026 - 7:31

score 132 · Answer 5 · 2026-03-25 01:27:02

132

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Question about what is formally being stated in an epsilon-delta proof

Published on 25 Mar 2026 - 1:27

score 46 · Answer 6 · 2026-03-28 08:35:36

46

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Can we prove that for some $k$ we have the following inequality?

Published on 28 Mar 2026 - 8:35

score 91 · Answer 7 · 2026-04-10 17:36:24

91

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Disproving homeomorphisms using connectedness

Published on 10 Apr 2026 - 17:36

score 29 · Answer 8 · 2018-03-08 08:54:49

29

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Simple Absolute Value Proof

Published on 08 Mar 2018 - 8:54

score 62 · Answer 9 · 2026-04-10 20:23:02

62

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Is my proof of "chain rule for limits" valid ? What can be other conditions for the "chain rule for limits"?

Published on 10 Apr 2026 - 20:23

score 1.2k · Answer 10 · 2018-03-08 20:15:09

1.2k

Views

How to prove an implication within an if and only if

Published on 08 Mar 2018 - 20:15

score 76 · Answer 11 · 2026-04-01 08:01:42

76

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Proving $|\sqrt{x}-1|\leqslant|x-1|$

Published on 01 Apr 2026 - 8:01

score 2.4k · Answer 12 · 2026-04-11 23:00:41

2.4k

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System of $m$ homogeneous equations in $n$ unknowns

Published on 11 Apr 2026 - 23:00

score 1.5k · Answer 13 · 2018-03-09 15:22:47

1.5k

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Probability of symmetric difference

Published on 09 Mar 2018 - 15:22

score 424 · Answer 14 · 2026-03-25 19:05:27

424

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Sum of all vectors in a vector space over a finite field

Published on 25 Mar 2026 - 19:05

score 229 · Answer 15 · 2026-03-26 17:32:18

229

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Mistake in proof of $\sin(a+b)=\sin(a)\cos(b)+\cos(a)\sin(b)$

Published on 26 Mar 2026 - 17:32

List Question

Are there proofs in math which can't be verified by a single person in their life span (say $80$ years)?

Prove that if $G$ is a cyclic group of order $n$, then $G$ is isomorphic to $\mathbb{Z}_{n}$.

Proof help: Induction ( $ 1/ \sqrt1 + 1/\sqrt2 +....+1/\sqrt{n}$ $< \sqrt{n}$ ) for $n>1$

Prove that three paraboloids have a common tangent plane

Question about what is formally being stated in an epsilon-delta proof

Can we prove that for some $k$ we have the following inequality?

Disproving homeomorphisms using connectedness

Simple Absolute Value Proof

Is my proof of "chain rule for limits" valid ? What can be other conditions for the "chain rule for limits"?

How to prove an implication within an if and only if

Proving $|\sqrt{x}-1|\leqslant|x-1|$

System of $m$ homogeneous equations in $n$ unknowns

Probability of symmetric difference

Sum of all vectors in a vector space over a finite field

Mistake in proof of $\sin(a+b)=\sin(a)\cos(b)+\cos(a)\sin(b)$

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