List questions from proof-writing

Published on 16 Apr 2026 - 5:36

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Taking a hypothesis and using a list of tautologies to prove a conclusion

Published on 12 Apr 2026 - 1:24

4k

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Showing that (A⊕B)⊕B is equal to A

Published on 14 Apr 2026 - 12:42

163

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How to you prove $|a|=|-a|$ is true

Published on 15 Apr 2026 - 0:23

144

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How to prove given sequence converges to 0?

Published on 12 Apr 2026 - 8:25

216

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Prove: The normal to the involute of a circle is tangent to the circle

Published on 14 Apr 2026 - 9:30

57

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$\mathscr{C}=\{E\subset\Omega:E\in\mathscr{R}\:\text{or}\:\Omega-E\in\mathscr{R}\}$ is an algebra

Published on 16 Apr 2026 - 14:59

48

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Formalization of an Intuitive Proof of the Surface Area of a Sphere

Published on 11 Apr 2026 - 3:14

43

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Understanding when assumptions are sufficient for induction proofs to be logically correct.

Published on 12 Apr 2026 - 16:52

125

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Question pertaining to perfect powers in sums of consecutive integers

Published on 16 Apr 2026 - 21:07

79

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Proof that $ 1_A \cup s \cdot s \cdot s $ is equivalence relation

Published on 26 Mar 2026 - 22:15

52

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Is simplifying a complete expansion of the right hand side of a trigonometric identity sufficient to prove it?

Published on 14 Apr 2026 - 19:36

4.8k

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Can a proof be just words?

Published on 09 Apr 2026 - 13:03

188

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Question with regards to proof about diameter of a closed ball.

Published on 13 Apr 2026 - 12:00

343

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Prove $\sum 3^k = O(3^n)$

Published on 15 Apr 2026 - 19:53

List Question

Prove that $\frac aa = 1$ when $a\neq 0$.

Taking a hypothesis and using a list of tautologies to prove a conclusion

Showing that (A⊕B)⊕B is equal to A

How to you prove $|a|=|-a|$ is true

How to prove given sequence converges to 0?

Prove: The normal to the involute of a circle is tangent to the circle

$\mathscr{C}=\{E\subset\Omega:E\in\mathscr{R}\:\text{or}\:\Omega-E\in\mathscr{R}\}$ is an algebra

Formalization of an Intuitive Proof of the Surface Area of a Sphere

Understanding when assumptions are sufficient for induction proofs to be logically correct.

Question pertaining to perfect powers in sums of consecutive integers

Proof that $ 1_A \cup s \cdot s \cdot s $ is equivalence relation

Is simplifying a complete expansion of the right hand side of a trigonometric identity sufficient to prove it?

Can a proof be just words?

Question with regards to proof about diameter of a closed ball.

Prove $\sum 3^k = O(3^n)$

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