List questions from solution-verification

Published on 13 Apr 2026 - 20:09

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Proof of Morera's Theorem for Triangular Contours

Published on 09 Apr 2026 - 19:28

310

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Prove that if $F$ is a family of sets and $A\in F$, then $\bigcap F\subseteq A$

Published on 15 Apr 2026 - 5:28

72

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Integral in $3D$

Published on 11 Apr 2026 - 23:07

123

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Find $a,b,c$ if ${(1+3+5+.....a)}+{(1+3+5+....b)}={(1+3+5+.....c)}$

Published on 07 Apr 2026 - 10:34

227

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Alteration in Binary Strings Question

Published on 12 Apr 2026 - 4:37

32

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Proof of equivalence of two statements about relationship between two generating functions

Published on 10 Apr 2026 - 14:34

72

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Given $\mathcal{F}\subseteq \mathcal{G}$, show $\bigcup\mathcal{F} \subseteq \bigcup\mathcal{G}$

Published on 15 Apr 2026 - 3:29

135

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How do I find the zero divisors for $\Bbb Z_{5} \times \Bbb Z_{8}$

Published on 13 Apr 2026 - 11:15

104

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(Verification) If $g \circ f$ is injective, then $f$ must also be injective.

Published on 14 Apr 2026 - 21:08

123

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(Verification) If $f$ and $g$ are bijective, then so is $g \circ f$.

Published on 17 Apr 2026 - 15:26

310

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Can I proof this statement "Suppose $x \in \mathbb{R}$ If $x^3-x>0$ then $x>-1$" like this?

Published on 16 Apr 2026 - 6:12

33

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Convergence of a Real number sequence

Published on 16 Apr 2026 - 15:18

1.5k

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Is every unitary operator a self-adjoint one?

Published on 25 Mar 2026 - 17:36

78

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Show that if $a$ and $b$ have the same sign then $|a + b| = |a| + |b| $, and if $a$ and $b$ have opposite signs then $|a+b| < |a| + |b|$

Published on 17 Apr 2026 - 8:15

List Question

Prove that the diagonals of a rhombus are orthogonal.

Proof of Morera's Theorem for Triangular Contours

Prove that if $F$ is a family of sets and $A\in F$, then $\bigcap F\subseteq A$

Integral in $3D$

Find $a,b,c$ if ${(1+3+5+.....a)}+{(1+3+5+....b)}={(1+3+5+.....c)}$

Alteration in Binary Strings Question

Proof of equivalence of two statements about relationship between two generating functions

Given $\mathcal{F}\subseteq \mathcal{G}$, show $\bigcup\mathcal{F} \subseteq \bigcup\mathcal{G}$

How do I find the zero divisors for $\Bbb Z_{5} \times \Bbb Z_{8}$

(Verification) If $g \circ f$ is injective, then $f$ must also be injective.

(Verification) If $f$ and $g$ are bijective, then so is $g \circ f$.

Can I proof this statement "Suppose $x \in \mathbb{R}$ If $x^3-x>0$ then $x>-1$" like this?

Convergence of a Real number sequence

Is every unitary operator a self-adjoint one?

Show that if $a$ and $b$ have the same sign then $|a + b| = |a| + |b| $, and if $a$ and $b$ have opposite signs then $|a+b| < |a| + |b|$

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