Question

how far has bird flown when two trains cross each other

score 202 · Answer 1 · 2026-03-25 19:10:58

202

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how far has bird flown when two trains cross each other

Published on 25 Mar 2026 - 19:10

score 191 · Answer 2 · 2026-03-25 11:16:09

191

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What closed paths make $\int_{\gamma} \frac 1 z dz = 2m \pi i$?

Published on 25 Mar 2026 - 11:16

score 3.1k · Answer 3 · 2026-04-05 17:22:50

3.1k

Views

If $(x_n)$ is bounded and diverges, then there exist two subsequences of $(x_n)$ that converge to different limits.

Published on 05 Apr 2026 - 17:22

score 113 · Answer 4 · 2026-03-26 13:30:17

113

Views

Prove that the cyclic nature of isomorphic groups are preserved

Published on 26 Mar 2026 - 13:30

score 35 · Answer 5 · 2018-08-02 02:19:26

35

Views

Algebraic Method for Inverse Maps

Published on 02 Aug 2018 - 2:19

score 63 · Answer 6 · 2026-03-26 23:11:32

63

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What is wrong with the proof of $\ell_1$ is nonreflexive?

Published on 26 Mar 2026 - 23:11

score 203 · Answer 7 · 2026-04-05 18:40:09

203

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$\sup\{\cos(2\pi t)\}_{t \in \mathbb Q \setminus \mathbb Z} = \sup\{\cos(2\pi t)\}_{t \in \mathbb Q}$?

Published on 05 Apr 2026 - 18:40

score 376 · Answer 8 · 2026-04-03 14:14:42

376

Views

3 Exercises on uniform convergence of complex sequences and relation to Weierstrass M-Test

Published on 03 Apr 2026 - 14:14

score 172 · Answer 9 · 2018-08-02 11:31:55

172

Views

Evaluate the intgral $\int{\frac{dx}{x^2(1-x^2)}}$ (solution verification)

Published on 02 Aug 2018 - 11:31

score 39 · Answer 10 · 2018-08-02 11:34:09

39

Views

Refuting the assertion that any given number can be rewritten to be undefined in a domain.

Published on 02 Aug 2018 - 11:34

score 219 · Answer 11 · 2026-04-05 18:49:04

219

Views

Why this sequence converges? Regarding "If $a$ is a limit point then we can find a sequence converging to it"

Published on 05 Apr 2026 - 18:49

score 3k · Answer 12 · 2018-08-02 20:45:58

3k

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Proving that a relation is well-defined

Published on 02 Aug 2018 - 20:45

score 81 · Answer 13 · 2018-08-02 21:22:45

81

Views

Proof verification: If $f$ is holomorphic on an open set and if $Re(f)$ is constant, then $f$ is constant.

Published on 02 Aug 2018 - 21:22

score 430 · Answer 14 · 2018-08-02 22:54:05

430

Views

Prove that the set of all subsets of a set is itself a set.

Published on 02 Aug 2018 - 22:54

score 195 · Answer 15 · 2026-03-26 23:10:56

195

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Corollary of Pitt's theorem ($\ell_p$ and $\ell_q$ are mutually non isomorphic unless $p=q.$)

Published on 26 Mar 2026 - 23:10

List Question

how far has bird flown when two trains cross each other

What closed paths make $\int_{\gamma} \frac 1 z dz = 2m \pi i$?

If $(x_n)$ is bounded and diverges, then there exist two subsequences of $(x_n)$ that converge to different limits.

Prove that the cyclic nature of isomorphic groups are preserved

Algebraic Method for Inverse Maps

What is wrong with the proof of $\ell_1$ is nonreflexive?

$\sup\{\cos(2\pi t)\}_{t \in \mathbb Q \setminus \mathbb Z} = \sup\{\cos(2\pi t)\}_{t \in \mathbb Q}$?

3 Exercises on uniform convergence of complex sequences and relation to Weierstrass M-Test

Evaluate the intgral $\int{\frac{dx}{x^2(1-x^2)}}$ (solution verification)

Refuting the assertion that any given number can be rewritten to be undefined in a domain.

Why this sequence converges? Regarding "If $a$ is a limit point then we can find a sequence converging to it"

Proving that a relation is well-defined

Proof verification: If $f$ is holomorphic on an open set and if $Re(f)$ is constant, then $f$ is constant.

Prove that the set of all subsets of a set is itself a set.

Corollary of Pitt's theorem ($\ell_p$ and $\ell_q$ are mutually non isomorphic unless $p=q.$)

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