Question

Formal Epsilon Argument Proof for Sequence

score 57 · Answer 1 · 2026-04-14 22:52:56

57

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Formal Epsilon Argument Proof for Sequence

Published on 14 Apr 2026 - 22:52

score 95 · Answer 2 · 2026-04-17 14:39:39

95

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Proving identity $\frac{1}{x+iy}=\frac{x}{x^2+y^2}-i\frac{y}{x^2+y^2}$

Published on 17 Apr 2026 - 14:39

score 635 · Answer 3 · 2026-04-15 22:50:56

635

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Let $a,b,c,d$ be real numbers such that $a<b < c<d$. Express the set $[a,b] \cup [c,d]$ as the difference of two sets

Published on 15 Apr 2026 - 22:50

score 111 · Answer 4 · 2026-04-14 22:33:49

111

Views

Showing a set is satisfiable with a truth table?

Published on 14 Apr 2026 - 22:33

score 2k · Answer 5 · 2026-04-13 18:07:43

2k

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Proof: For all real numbers x and y if x + floor of (x) = y + floor of (y) then x = y

Published on 13 Apr 2026 - 18:07

score 334 · Answer 6 · 2026-04-15 15:40:34

334

Views

Why are set operations always showed with a Venn Diagram where both A and B are intersecting?

Published on 15 Apr 2026 - 15:40

score 3.2k · Answer 7 · 2026-04-16 09:13:28

3.2k

Views

For any integer a and any prime number p, if p divides a then p does not divide a+1

Published on 16 Apr 2026 - 9:13

score 84 · Answer 8 · 2026-04-11 19:04:22

84

Views

When is it more appropriate to describe steps using English rather than mathematics?

Published on 11 Apr 2026 - 19:04

score 73 · Answer 9 · 2026-04-11 05:12:52

73

Views

Inequality proof: $|f(x)-L| \leq 1 \implies |f(x)| \leq |L| + 1$

Published on 11 Apr 2026 - 5:12

score 567 · Answer 10 · 2026-04-12 12:25:49

567

Views

Proof by induction on an uncountable interval

Published on 12 Apr 2026 - 12:25

score 82 · Answer 11 · 2026-04-17 05:01:28

82

Views

How to prove these 6 functions to be continuous?

Published on 17 Apr 2026 - 5:01

score 121 · Answer 12 · 2026-04-17 06:19:37

121

Views

Proving correspondence and partitions via generating functions, or at least I think so.

Published on 17 Apr 2026 - 6:19

score 651 · Answer 13 · 2026-04-15 10:05:03

651

Views

Can every real number be uniquely represented as a sum of a rational number and an irrational number $\in [0, 1)$?

Published on 15 Apr 2026 - 10:05

score 58 · Answer 14 · 2026-04-13 23:23:22

58

Views

Can't see a mistake in my proof, monic composition and monicity of it's composites.

Published on 13 Apr 2026 - 23:23

score 36 · Answer 15 · 2026-04-14 09:33:41

36

Views

(very) simple proof of sets

Published on 14 Apr 2026 - 9:33

List Question

Formal Epsilon Argument Proof for Sequence

Proving identity $\frac{1}{x+iy}=\frac{x}{x^2+y^2}-i\frac{y}{x^2+y^2}$

Let $a,b,c,d$ be real numbers such that $a<b < c<d$. Express the set $[a,b] \cup [c,d]$ as the difference of two sets

Showing a set is satisfiable with a truth table?

Proof: For all real numbers x and y if x + floor of (x) = y + floor of (y) then x = y

Why are set operations always showed with a Venn Diagram where both A and B are intersecting?

For any integer a and any prime number p, if p divides a then p does not divide a+1

When is it more appropriate to describe steps using English rather than mathematics?

Inequality proof: $|f(x)-L| \leq 1 \implies |f(x)| \leq |L| + 1$

Proof by induction on an uncountable interval

How to prove these 6 functions to be continuous?

Proving correspondence and partitions via generating functions, or at least I think so.

Can every real number be uniquely represented as a sum of a rational number and an irrational number $\in [0, 1)$?

Can't see a mistake in my proof, monic composition and monicity of it's composites.

(very) simple proof of sets

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