Question

Elementary matrix transformations

score 91 · Answer 1 · 2026-04-13 09:30:12

91

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Elementary matrix transformations

Published on 13 Apr 2026 - 9:30

score 97 · Answer 2 · 2026-04-15 18:46:47

97

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A pattern on finding squares for which their sum is $\Big(\sum\limits_{i=0}^j x^i\Big)^2$

Published on 15 Apr 2026 - 18:46

score 410 · Answer 3 · 2026-04-14 08:53:15

410

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Proof that given n real numbers, that less than half of them are greater than twice the average

Published on 14 Apr 2026 - 8:53

score 32 · Answer 4 · 2026-04-17 06:16:39

32

Views

Prove that if $M$ is a $n \times n$ matrix, and $\mathrm{rank}(M)=n'$ then $M^{-1}(0)$ has dimension $n-n'$.

Published on 17 Apr 2026 - 6:16

score 92 · Answer 5 · 2026-04-15 04:08:10

92

Views

Natural Deduction Prove ∀x¬P (x)

Published on 15 Apr 2026 - 4:08

score 2k · Answer 6 · 2026-04-12 05:22:47

2k

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Prove If a,b are both non-zero, then ab is not equal to 0

Published on 12 Apr 2026 - 5:22

score 157 · Answer 7 · 2026-04-16 11:28:09

157

Views

Direct telescopic proof for sum of $1^2+2^2+...+n^2$

Published on 16 Apr 2026 - 11:28

score 928 · Answer 8 · 2026-04-14 19:51:55

928

Views

How are proofs normally constructed in a write up, in one line or split up into multiple lines?

Published on 14 Apr 2026 - 19:51

score 1k · Answer 9 · 2026-04-12 22:34:08

1k

Views

Proving average is greater

Published on 12 Apr 2026 - 22:34

score 58 · Answer 10 · 2026-04-09 01:07:04

58

Views

Proof of Fundamental theorem of calculus with $C^1$ using Divergence theorem

Published on 09 Apr 2026 - 1:07

score 542 · Answer 11 · 2026-04-14 12:59:45

542

Views

Terence Tao Analysis 1 Exercise 3.4.11

Published on 14 Apr 2026 - 12:59

score 602 · Answer 12 · 2026-04-11 17:46:08

602

Views

Bijection between sets and complements

Published on 11 Apr 2026 - 17:46

score 163 · Answer 13 · 2026-04-09 00:32:24

163

Views

How can I formally prove the following function is bounded?

Published on 09 Apr 2026 - 0:32

score 51 · Answer 14 · 2026-04-14 04:42:43

51

Views

Can a discrete variable take on multiple values, and thus truth values, simultaneously in the mathematical proof below or elsewhere?

Published on 14 Apr 2026 - 4:42

score 33 · Answer 15 · 2026-04-13 19:15:58

33

Views

Can a discrete variable take on multiple values, and thus truth values, simultaneously in the mathematical proof below or elsewhere?

Published on 13 Apr 2026 - 19:15

List Question

Elementary matrix transformations

A pattern on finding squares for which their sum is $\Big(\sum\limits_{i=0}^j x^i\Big)^2$

Proof that given n real numbers, that less than half of them are greater than twice the average

Prove that if $M$ is a $n \times n$ matrix, and $\mathrm{rank}(M)=n'$ then $M^{-1}(0)$ has dimension $n-n'$.

Natural Deduction Prove ∀x¬P (x)

Prove If a,b are both non-zero, then ab is not equal to 0

Direct telescopic proof for sum of $1^2+2^2+...+n^2$

How are proofs normally constructed in a write up, in one line or split up into multiple lines?

Proving average is greater

Proof of Fundamental theorem of calculus with $C^1$ using Divergence theorem

Terence Tao Analysis 1 Exercise 3.4.11

Bijection between sets and complements

How can I formally prove the following function is bounded?

Can a discrete variable take on multiple values, and thus truth values, simultaneously in the mathematical proof below or elsewhere?

Can a discrete variable take on multiple values, and thus truth values, simultaneously in the mathematical proof below or elsewhere?

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