List questions from proof-verification

Published on 25 Mar 2026 - 17:17

74

Views

Compute 189 × 214 (mod 15) by reducing first, then multiplying, then reducing again

Published on 25 Mar 2026 - 6:27

1.3k

Views

Discuss the solution to 5x ≡ 8(mod 10)

Published on 25 Mar 2026 - 6:26

4.9k

Views

Proving/disproving that √7 - √2 is irrational

Published on 08 Feb 2018 - 5:39

86

Views

Square Root Irrational Proof

Published on 21 Mar 2026 - 23:28

64

Views

Proof verification: $f(S\cup T) = f(S) \cup f(T)$, where $S$ and $T$ are subsets of the set $A$ and $f$ is a function from $A$ to $B$.

Published on 23 Mar 2026 - 23:04

29

Views

Width at half the maximum height of a sin-function is one-third of wavelength?

Published on 08 Feb 2018 - 12:52

28

Views

When does an action on $X$ makes an well defined action on $L^{\infty}(X)$?

Published on 25 Mar 2026 - 23:32

11.3k

Views

If a ≡ b (mod n) and m|n, then a ≡ b (mod m)

Published on 25 Mar 2026 - 8:08

591

Views

Prove that $x^x+y^y=z^z$ doesn't have integer solutions

Published on 25 Mar 2026 - 1:16

100

Views

Suppose E ⊆ Z is nonempty and bounded above. Show that sup(E) ∈ E. In particular, sup(E) ∈ Z.

Published on 08 Feb 2018 - 19:43

74

Views

pointwise convergence uniqueness for complex functions

Published on 25 Mar 2026 - 14:14

47

Views

Is this inequality satisfied for large values?

Published on 25 Mar 2026 - 23:16

638

Views

Induction proof of sum of Fibonacci sequence

Published on 25 Mar 2026 - 20:17

111

Views

Do there exist infinitely many complex lines through the origin?

Published on 20 Mar 2026 - 3:26

List Question

Discrete Valuation Ring properties

Compute 189 × 214 (mod 15) by reducing first, then multiplying, then reducing again

Discuss the solution to 5x ≡ 8(mod 10)

Proving/disproving that √7 - √2 is irrational

Square Root Irrational Proof

Proof verification: $f(S\cup T) = f(S) \cup f(T)$, where $S$ and $T$ are subsets of the set $A$ and $f$ is a function from $A$ to $B$.

Width at half the maximum height of a sin-function is one-third of wavelength?

When does an action on $X$ makes an well defined action on $L^{\infty}(X)$?

If a ≡ b (mod n) and m|n, then a ≡ b (mod m)

Prove that $x^x+y^y=z^z$ doesn't have integer solutions

Suppose E ⊆ Z is nonempty and bounded above. Show that sup(E) ∈ E. In particular, sup(E) ∈ Z.

pointwise convergence uniqueness for complex functions

Is this inequality satisfied for large values?

Induction proof of sum of Fibonacci sequence

Do there exist infinitely many complex lines through the origin?

Trending Questions

Popular # Hahtags

Popular Questions