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Questions about a proof

score 52 · Answer 1 · 2026-04-14 23:45:48

52

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Questions about a proof

Published on 14 Apr 2026 - 23:45

score 364 · Answer 2 · 2026-04-10 07:29:05

364

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Proof that Thomae’s function is Riemann integrable

Published on 10 Apr 2026 - 7:29

score 27 · Answer 3 · 2026-04-15 10:48:40

27

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Show $A\cup B$ is denumerable by constructing a bijection

Published on 15 Apr 2026 - 10:48

score 355 · Answer 4 · 2026-04-13 23:56:26

355

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On a Bessel Inequality proof

Published on 13 Apr 2026 - 23:56

score 102 · Answer 5 · 2026-04-22 15:27:32

102

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Monoidal functor and the units

Published on 22 Apr 2026 - 15:27

score 57 · Answer 6 · 2026-04-17 13:14:27

57

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Why is $1+1+\dfrac{1}{2^{\alpha-1}}+\dfrac{1}{2^{2(\alpha-1)}} +\cdots+\dfrac{1}{2^{(\alpha-1)(K-1)}}<1+\dfrac{1}{1-(1/2^{\alpha-1})}$?

Published on 17 Apr 2026 - 13:14

score 52 · Answer 7 · 2026-04-14 23:39:56

52

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Proving by contradiction that between any two unequal rationals there is a third rational?

Published on 14 Apr 2026 - 23:39

score 245 · Answer 8 · 2026-04-16 13:20:52

245

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Completeness of propositional logic of $(p \to q)\to q \vdash (q\to p)\to p$

Published on 16 Apr 2026 - 13:20

score 289 · Answer 9 · 2026-04-10 07:30:55

289

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Prove that kernel of a transformation is a subset of the composite transformation.

Published on 10 Apr 2026 - 7:30

score 26 · Answer 10 · 2026-04-13 13:32:29

26

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fitch proof help, don't quite understand the answer

Published on 13 Apr 2026 - 13:32

score 77 · Answer 11 · 2026-04-12 06:43:52

77

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Proof Construction & Verification - Proving that there exists a solution for quadratic equations under certain conditions?

Published on 12 Apr 2026 - 6:43

score 45 · Answer 12 · 2026-04-16 15:22:52

45

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Graph Theory: Connectivity of digraphs

Published on 16 Apr 2026 - 15:22

score 69 · Answer 13 · 2026-04-11 20:00:41

69

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Understanding the idea that borel sigma algebra of subsets of $R$ is contained in the sigms algebra generated by all compact sets.

Published on 11 Apr 2026 - 20:00

score 209 · Answer 14 · 2026-03-26 02:58:29

209

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Help understanding Roth's theorem of arithmetic progression.

Published on 26 Mar 2026 - 2:58

score 33 · Answer 15 · 2026-04-16 05:37:07

33

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$\int M(f(x)) \mu(dx) = \int_S \int_0^\infty I_{( u < f(x))} v(du)\mu(dx)$

Published on 16 Apr 2026 - 5:37

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Questions about a proof

Proof that Thomae’s function is Riemann integrable

Show $A\cup B$ is denumerable by constructing a bijection

On a Bessel Inequality proof

Monoidal functor and the units

Why is $1+1+\dfrac{1}{2^{\alpha-1}}+\dfrac{1}{2^{2(\alpha-1)}} +\cdots+\dfrac{1}{2^{(\alpha-1)(K-1)}}<1+\dfrac{1}{1-(1/2^{\alpha-1})}$?

Proving by contradiction that between any two unequal rationals there is a third rational?

Completeness of propositional logic of $(p \to q)\to q \vdash (q\to p)\to p$

Prove that kernel of a transformation is a subset of the composite transformation.

fitch proof help, don't quite understand the answer

Proof Construction & Verification - Proving that there exists a solution for quadratic equations under certain conditions?

Graph Theory: Connectivity of digraphs

Understanding the idea that borel sigma algebra of subsets of $R$ is contained in the sigms algebra generated by all compact sets.

Help understanding Roth's theorem of arithmetic progression.

$\int M(f(x)) \mu(dx) = \int_S \int_0^\infty I_{( u < f(x))} v(du)\mu(dx)$

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