Question

Prove that $L(S\cap T) \subseteq L(S)\cap L(T)$

score 71 · Answer 1 · 2026-04-16 22:43:46

71

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Prove that $L(S\cap T) \subseteq L(S)\cap L(T)$

Published on 16 Apr 2026 - 22:43

score 155 · Answer 2 · 2026-04-13 05:38:12

155

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How do I prove transitivity of $R = \{(x, y) : x - y \in \mathbb{Z}\}$?

Published on 13 Apr 2026 - 5:38

score 678 · Answer 3 · 2026-04-15 10:58:21

678

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Show that $\|(x,y,z)\| = |x| + 2 \sqrt{y^{2} + z^{2}}$ is a norm on $\mathbb{R}^3$

Published on 15 Apr 2026 - 10:58

score 353 · Answer 4 · 2026-04-15 06:54:19

353

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Direct Proof: $\forall x \in\mathbb{ Z} , x^2-x \geq 0$

Published on 15 Apr 2026 - 6:54

score 40 · Answer 5 · 2026-04-15 18:01:16

40

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Find an Equivalence Class

Published on 15 Apr 2026 - 18:01

score 11.5k · Answer 6 · 2026-04-11 08:20:01

11.5k

Views

Proof of the Mean Value Theorem for Integrals

Published on 11 Apr 2026 - 8:20

score 158 · Answer 7 · 2026-04-17 02:46:59

158

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Prove the following by using a contrapositive argument. "Let $f(x)=7-3x$. If $x_1$ $\neq$ $x_2$, then $f(x_1)$ $\neq$ $f(x_2)$"

Published on 17 Apr 2026 - 2:46

score 1.4k · Answer 8 · 2026-04-15 00:00:02

1.4k

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Show for all integers $n$, if $d$ is an integer such that $d|(n+5)$ and $d|(n^2+7)$, then $d|32$

Published on 15 Apr 2026 - 0:00

score 59 · Answer 9 · 2026-04-13 21:11:12

59

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Does RMS of a sequence of values equate to the RMS of the Fourier Transform of the same sequence of values?

Published on 13 Apr 2026 - 21:11

score 177 · Answer 10 · 2026-04-13 08:04:09

177

Views

Injective, Surjective Question on functions

Published on 13 Apr 2026 - 8:04

score 54 · Answer 11 · 2026-04-14 20:08:25

54

Views

Inequality using Hölder $x=\frac{y}{y-1}$ $y>1$

Published on 14 Apr 2026 - 20:08

score 140 · Answer 12 · 2026-04-08 20:45:22

140

Views

Linear trasformation and Lebesgue measure

Published on 08 Apr 2026 - 20:45

score 976 · Answer 13 · 2026-04-16 08:03:48

976

Views

disproving $x \log{x} \in \Theta(x^2)$

Published on 16 Apr 2026 - 8:03

score 688 · Answer 14 · 2026-04-12 00:41:08

688

Views

Inequalities and maximum-minimum of a function

Published on 12 Apr 2026 - 0:41

score 115 · Answer 15 · 2026-04-17 14:08:25

115

Views

If $f(x)>g(x)$ after intersection it remains that way until next intersection.

Published on 17 Apr 2026 - 14:08

List Question

Prove that $L(S\cap T) \subseteq L(S)\cap L(T)$

How do I prove transitivity of $R = \{(x, y) : x - y \in \mathbb{Z}\}$?

Show that $\|(x,y,z)\| = |x| + 2 \sqrt{y^{2} + z^{2}}$ is a norm on $\mathbb{R}^3$

Direct Proof: $\forall x \in\mathbb{ Z} , x^2-x \geq 0$

Find an Equivalence Class

Proof of the Mean Value Theorem for Integrals

Prove the following by using a contrapositive argument. "Let $f(x)=7-3x$. If $x_1$ $\neq$ $x_2$, then $f(x_1)$ $\neq$ $f(x_2)$"

Show for all integers $n$, if $d$ is an integer such that $d|(n+5)$ and $d|(n^2+7)$, then $d|32$

Does RMS of a sequence of values equate to the RMS of the Fourier Transform of the same sequence of values?

Injective, Surjective Question on functions

Inequality using Hölder $x=\frac{y}{y-1}$ $y>1$

Linear trasformation and Lebesgue measure

disproving $x \log{x} \in \Theta(x^2)$

Inequalities and maximum-minimum of a function

If $f(x)>g(x)$ after intersection it remains that way until next intersection.

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