List questions from proof-writing

Published on 09 Apr 2026 - 10:52

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Proving that if $x^4 + 5x + 1 < 27$ then $x < 2$

Published on 17 Apr 2026 - 10:22

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Prove that if a sequence is eventually bounded then it is bounded

Published on 14 Apr 2026 - 13:39

88

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$X\times Y$ homeomorphic to $X^{} \times Y^{}$ Proof Verification

Published on 13 Apr 2026 - 7:37

47

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Suppose $(a_n) \rightarrow a.$ If $a_n \geq 0$ for all $n$ then $a \geq 0$. Prove this result.

Published on 17 Apr 2026 - 12:34

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Reduced homology of the suspension

Published on 11 Apr 2026 - 20:37

42

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help proving statement with quantifiers and inequalities

Published on 09 Apr 2026 - 0:30

91

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Prove that {→} is not a complete set

Published on 13 Apr 2026 - 17:23

212

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$y \leq x \leq y \implies x = y$

Published on 14 Apr 2026 - 2:59

40

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If $bb_n \rightarrow b^2$ how do I show $bb_n>\frac{b^2}{2}$

Published on 15 Apr 2026 - 21:53

639

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0 order Logic Construction Sequence

Published on 14 Apr 2026 - 18:33

46

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Proving number of letters = number of connectives $+1$

Published on 17 Apr 2026 - 11:59

308

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Proving a sharp maximum identity for some relatively prime odd integers

Published on 11 Apr 2026 - 20:28

3.3k

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How do I prove that $\dim(V+W) = \dim(V) + \dim(W)?$

Published on 11 Apr 2026 - 1:49

98

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Show that no ∞-persistent numbers exist.

Published on 12 Apr 2026 - 22:56

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question on proof method

Proving that if $x^4 + 5x + 1 < 27$ then $x < 2$

Prove that if a sequence is eventually bounded then it is bounded

$X\times Y$ homeomorphic to $X^{} \times Y^{}$ Proof Verification

Suppose $(a_n) \rightarrow a.$ If $a_n \geq 0$ for all $n$ then $a \geq 0$. Prove this result.

Reduced homology of the suspension

help proving statement with quantifiers and inequalities

Prove that {→} is not a complete set

$y \leq x \leq y \implies x = y$

If $bb_n \rightarrow b^2$ how do I show $bb_n>\frac{b^2}{2}$

0 order Logic Construction Sequence

Proving number of letters = number of connectives $+1$

Proving a sharp maximum identity for some relatively prime odd integers

How do I prove that $\dim(V+W) = \dim(V) + \dim(W)?$

Show that no ∞-persistent numbers exist.

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