Question

Prove that every sequence in the minimal uncountable well-ordered set is bounded above.

score 91 · Answer 1 · 2026-04-15 09:29:00

91

Views

Prove that every sequence in the minimal uncountable well-ordered set is bounded above.

Published on 15 Apr 2026 - 9:29

score 51 · Answer 2 · 2026-04-16 05:48:45

51

Views

For vectors in an Inner product space, would this be a valid proof for the triangle inequality?

Published on 16 Apr 2026 - 5:48

score 1.5k · Answer 3 · 2026-05-14 19:08:18

1.5k

Views

A set $A$ is finite if, and only if every nonempty set of subsets of $A$ has a maximal element in the sense of $\subset$

Published on 14 May 2026 - 19:08

score 1.5k · Answer 4 · 2026-04-13 16:00:06

1.5k

Views

Prove that for any integer $a$, $9\nmid(a^2-3)$.

Published on 13 Apr 2026 - 16:00

score 227 · Answer 5 · 2026-04-16 14:03:07

227

Views

Find an explicit formula for the recurrence relation $a_n = 5_{an−1} + 6_{an−2}$ with initial conditions $a_1$ = 5 and $a_2$ = 11.

Published on 16 Apr 2026 - 14:03

score 36 · Answer 6 · 2026-04-14 08:52:30

36

Views

Proof of $\sum_{i=0}^{N_s - 1} e^{-j2\pi n(k'-k)/N_s} = N_s\delta(k'-k)$

Published on 14 Apr 2026 - 8:52

score 799 · Answer 7 · 2026-04-16 06:22:20

799

Views

Computing intersection of infinite sets.

Published on 16 Apr 2026 - 6:22

score 70 · Answer 8 · 2026-04-24 12:52:41

70

Views

Is it also a cumulative distribution function?

Published on 24 Apr 2026 - 12:52

score 198 · Answer 9 · 2026-05-10 18:29:12

198

Views

Associated graded ring of an ideal is reduced, then the ideal is normal.

Published on 10 May 2026 - 18:29

score 374 · Answer 10 · 2026-04-10 07:14:33

374

Views

Finding maximal chain and maximal anti-chain in partially ordered set

Published on 10 Apr 2026 - 7:14

score 166 · Answer 11 · 2026-04-16 01:33:19

166

Views

Proving that $a^{25}$ mod 65 = $a$ mod 65

Published on 16 Apr 2026 - 1:33

score 107 · Answer 12 · 2026-05-11 03:46:33

107

Views

Showing the solution is unique or not for Poisson problem

Published on 11 May 2026 - 3:46

score 266 · Answer 13 · 2026-04-11 15:33:18

266

Views

Is my proof that $\ker(T)\subseteq \{v-T(v) \mid v \in V\}$ correct

Published on 11 Apr 2026 - 15:33

score 293 · Answer 14 · 2026-04-10 19:29:18

293

Views

Closure and interior of a connected set $A$

Published on 10 Apr 2026 - 19:29

score 32 · Answer 15 · 2026-04-14 22:40:52

32

Views

Solve $\int_0^x (z^2+1)e^{s\left(\frac{z^3}{3}+z\right)} \ dz$

Published on 14 Apr 2026 - 22:40

List Question

Prove that every sequence in the minimal uncountable well-ordered set is bounded above.

For vectors in an Inner product space, would this be a valid proof for the triangle inequality?

A set $A$ is finite if, and only if every nonempty set of subsets of $A$ has a maximal element in the sense of $\subset$

Prove that for any integer $a$, $9\nmid(a^2-3)$.

Find an explicit formula for the recurrence relation $a_n = 5_{an−1} + 6_{an−2}$ with initial conditions $a_1$ = 5 and $a_2$ = 11.

Proof of $\sum_{i=0}^{N_s - 1} e^{-j2\pi n(k'-k)/N_s} = N_s\delta(k'-k)$

Computing intersection of infinite sets.

Is it also a cumulative distribution function?

Associated graded ring of an ideal is reduced, then the ideal is normal.

Finding maximal chain and maximal anti-chain in partially ordered set

Proving that $a^{25}$ mod 65 = $a$ mod 65

Showing the solution is unique or not for Poisson problem

Is my proof that $\ker(T)\subseteq \{v-T(v) \mid v \in V\}$ correct

Closure and interior of a connected set $A$

Solve $\int_0^x (z^2+1)e^{s\left(\frac{z^3}{3}+z\right)} \ dz$

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