New posts in Proof Writing

Prove that for any integer $n>0$ which is a perfect square, $n+4$ is not a perfect square.

A New Proof of Pythagorean theorem?

Show that the sequence defined as $x_{n+1}=\sqrt[3]{x_n+x_{n-1}}$ converges

If $f$ is uniformly continuous on the dense set $E \subset X$ then a continuous extension of $f$ exists on $X$.

Prove that limit doesn't exists at all

Understanding implications

Counterexample regarding basic properties of limits

Is this equivalence of the compactness theorem true?

"Let" in math texts

Sets of integers that can be placed in a magic square