List questions from proof-verification

Published on 25 Mar 2026 - 16:08

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Easy Lim Sup Proof?

Published on 25 Mar 2026 - 18:59

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How can I determine the amount of combinations where no spot can filled by more than one object? (b)

Published on 27 Mar 2026 - 21:36

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Randomly picking 6 balls

Published on 06 Sep 2018 - 23:18

343

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How to prove an equivalence relation of (a,b) | a and b have a common factor grater than 1?

Published on 27 Mar 2026 - 1:53

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Proving that if $f:X \rightarrow Y$ is a continuous function on $X$ such that $\lim \limits_{p \to p_0} f(p) = P$ for $p_0 \in X$, then $f(p_0)=P$.

Published on 01 Apr 2026 - 14:37

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What's wrong with this 1 = -1 proof?

Published on 01 Apr 2026 - 9:57

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Proof check: the product of compact sets is compact

Published on 07 Sep 2018 - 7:55

937

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Degree of a map and Suspension

Published on 27 Mar 2026 - 19:53

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Prove by induction that $\sum_{n=1}^\infty \frac{1}{2^n} = 1$

Published on 26 Mar 2026 - 16:56

59

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Proving divisibility with modulo

Published on 26 Mar 2026 - 6:26

453

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Connectedness on the real line

Published on 07 Sep 2018 - 15:05

59

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Solution verification for finding flaw in proof

Published on 01 Apr 2026 - 14:33

212

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$f$ convex $\iff$ $f(y)\ge f(x)+\nabla f(x)(x-y)$

Published on 28 Mar 2026 - 3:55

128

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Von Neumann integers definition

Published on 26 Mar 2026 - 16:03

List Question

Prove that $D_{2n} = \langle s, rs \rangle$

Easy Lim Sup Proof?

How can I determine the amount of combinations where no spot can filled by more than one object? (b)

Randomly picking 6 balls

How to prove an equivalence relation of (a,b) | a and b have a common factor grater than 1?

Proving that if $f:X \rightarrow Y$ is a continuous function on $X$ such that $\lim \limits_{p \to p_0} f(p) = P$ for $p_0 \in X$, then $f(p_0)=P$.

What's wrong with this 1 = -1 proof?

Proof check: the product of compact sets is compact

Degree of a map and Suspension

Prove by induction that $\sum_{n=1}^\infty \frac{1}{2^n} = 1$

Proving divisibility with modulo

Connectedness on the real line

Solution verification for finding flaw in proof

$f$ convex $\iff$ $f(y)\ge f(x)+\nabla f(x)(x-y)$

Von Neumann integers definition

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