Question

Is the set of formulas equivalent to a bounded formula decidable

score 181 · Answer 1 · 2026-03-23 01:33:33

181

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Is the set of formulas equivalent to a bounded formula decidable

Published on 23 Mar 2026 - 1:33

score 43 · Answer 2 · 2018-04-13 22:13:20

43

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How to prove $\exists n \in \mathbb{N}$ such that $a < b^n$ with $a > 0$ and $b>1$, with $a,b \in \mathbb{Q}$

Published on 13 Apr 2018 - 22:13

score 39 · Answer 3 · 2018-04-17 16:08:00

39

Views

Prove that HM of two natural number is not a natural number

Published on 17 Apr 2018 - 16:08

score 115 · Answer 4 · 2018-04-27 23:02:03

115

Views

Prove $(9^n-1)/8$ is never prime (always composite or $1)$

Published on 27 Apr 2018 - 23:02

score 54 · Answer 5 · 2026-03-22 20:30:44

54

Views

Prime factorization of numbers in $1+6N$ and $5+6N$?

Published on 22 Mar 2026 - 20:30

score 16.1k · Answer 6 · 2026-03-22 10:29:02

16.1k

Views

Bijective Function from N to N x N

Published on 22 Mar 2026 - 10:29

score 111 · Answer 7 · 2026-03-22 08:03:07

111

Views

Can you make all natural number from 3?

Published on 22 Mar 2026 - 8:03

score 64 · Answer 8 · 2018-05-20 03:08:17

64

Views

What is the cardinality of this simple set of ordered pairs?

Published on 20 May 2018 - 3:08

score 207 · Answer 9 · 2018-05-20 09:02:27

207

Views

Non-linear system of equations over the positive integers — more unknowns than equations

Published on 20 May 2018 - 9:02

score 84 · Answer 10 · 2018-05-20 11:13:23

84

Views

Can you make all natural numbers using $x^2$ and $\frac{x}{2}$?

Published on 20 May 2018 - 11:13

score 72 · Answer 11 · 2018-05-21 21:04:12

How can I determine the relationship between some variables in an expression so that the final result is always a natural number?

score 310 · Answer 12 · 2018-05-21 22:34:27

310

Views

How to define addition on the naturals as a function rather than with the successor "function".

Published on 21 May 2018 - 22:34

score 345 · Answer 13 · 2026-03-22 09:17:22

345

Views

The set of all digits in a real number

Published on 22 Mar 2026 - 9:17

score 110 · Answer 14 · 2026-03-22 18:18:33

110

Views

Solving $4^m-3^n=p^2$ for natural $(m,n,p)$.

Published on 22 Mar 2026 - 18:18

score 22 · Answer 15 · 2018-05-24 22:33:15

22

Views

Practical method for finding a whole number N such that a real number R divided by N is inside a closed interval

Published on 24 May 2018 - 22:33

List Question

Is the set of formulas equivalent to a bounded formula decidable

How to prove $\exists n \in \mathbb{N}$ such that $a < b^n$ with $a > 0$ and $b>1$, with $a,b \in \mathbb{Q}$

Prove that HM of two natural number is not a natural number

Prove $(9^n-1)/8$ is never prime (always composite or $1)$

Prime factorization of numbers in $1+6N$ and $5+6N$?

Bijective Function from N to N x N

Can you make all natural number from 3?

What is the cardinality of this simple set of ordered pairs?

Non-linear system of equations over the positive integers — more unknowns than equations

Can you make all natural numbers using $x^2$ and $\frac{x}{2}$?

How can I determine the relationship between some variables in an expression so that the final result is always a natural number?

How to define addition on the naturals as a function rather than with the successor "function".

The set of all digits in a real number

Solving $4^m-3^n=p^2$ for natural $(m,n,p)$.

Practical method for finding a whole number N such that a real number R divided by N is inside a closed interval

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