Question

For what cardinals does exponentiation by a smaller cardinal is idempotent.

score 51 · Answer 1 · 2023-02-27 21:51:32

51

Views

For what cardinals does exponentiation by a smaller cardinal is idempotent.

Published on 27 Feb 2023 - 21:51

score 69 · Answer 2 · 2023-03-03 00:00:14

69

Views

Does the limit product formula hold when only one of the two limits are defined and the other is undefined?

Published on 03 Mar 2023 - 0:00

score 124 · Answer 3 · 2023-03-03 11:17:08

124

Views

Determine if the sequence $a_n=\frac{4^n+5n!}{n!+2^n}$ converges or diverges. If the sequence converges, find its limit. State your reasoning.

Published on 03 Mar 2023 - 11:17

score 50 · Answer 4 · 2023-03-07 19:09:22

50

Views

Before calculating, simplify infinite series

Published on 07 Mar 2023 - 19:09

score 245 · Answer 5 · 2023-03-09 12:46:24

245

Views

L'Hopital's Rule for nested exponential function

Published on 09 Mar 2023 - 12:46

score 226 · Answer 6 · 2023-03-10 12:13:07

226

Views

Infinite hotel +1 guest

Published on 10 Mar 2023 - 12:13

score 27 · Answer 7 · 2026-03-26 14:23:02

27

Views

A monoid structure $$ on all of $\Bbb{Z}$ isomorphic to $A \Bbb{Z} + 1$ for some $A \neq 0,1$ is such that $\Bbb{Z}\Bbb{Z}$ has infinite complement.

Published on 26 Mar 2026 - 14:23

score 68 · Answer 8 · 2023-03-15 02:06:16

68

Views

Possible Bijection Between Natural and Real Numbers

Published on 15 Mar 2023 - 2:06

score 51 · Answer 9 · 2026-03-26 12:36:42

51

Views

Prove that there exist equal number of irrational numbers between any 2 rational numbers, when the difference between the 2 rational numbers is same.

Published on 26 Mar 2026 - 12:36

score 92 · Answer 10 · 2026-03-27 00:10:20

92

Views

For an Infinite Time Turing Machine, if a 0 turns to a 1 at some limit stage, will it be a 1 at all future limit stages?

Published on 27 Mar 2026 - 0:10

score 174 · Answer 11 · 2026-03-26 01:28:20

174

Views

Do we need a new number system for inverse tetration?

Published on 26 Mar 2026 - 1:28

score 30 · Answer 12 · 2023-04-06 09:12:01

30

Views

Finding first order derivative of function with sum to infinity

Published on 06 Apr 2023 - 9:12

score 36 · Answer 13 · 2026-03-26 14:20:55

36

Views

Infinite number of regular exressions for a given language

Published on 26 Mar 2026 - 14:20

score 62 · Answer 14 · 2023-04-07 16:30:54

62

Views

How is this change possible?

Published on 07 Apr 2023 - 16:30

score 124 · Answer 15 · 2026-03-28 13:02:20

124

Views

What is the cardinality of non-singleton subsets of $\mathbb{N}$?

Published on 28 Mar 2026 - 13:02

List Question

For what cardinals does exponentiation by a smaller cardinal is idempotent.

Does the limit product formula hold when only one of the two limits are defined and the other is undefined?

Determine if the sequence $a_n=\frac{4^n+5n!}{n!+2^n}$ converges or diverges. If the sequence converges, find its limit. State your reasoning.

Before calculating, simplify infinite series

L'Hopital's Rule for nested exponential function

Infinite hotel +1 guest

A monoid structure $$ on all of $\Bbb{Z}$ isomorphic to $A \Bbb{Z} + 1$ for some $A \neq 0,1$ is such that $\Bbb{Z}\Bbb{Z}$ has infinite complement.

Possible Bijection Between Natural and Real Numbers

Prove that there exist equal number of irrational numbers between any 2 rational numbers, when the difference between the 2 rational numbers is same.

For an Infinite Time Turing Machine, if a 0 turns to a 1 at some limit stage, will it be a 1 at all future limit stages?

Do we need a new number system for inverse tetration?

Finding first order derivative of function with sum to infinity

Infinite number of regular exressions for a given language

How is this change possible?

What is the cardinality of non-singleton subsets of $\mathbb{N}$?

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