New posts in Elementary Set Theory

Set of rapidly increasing functions is uncountable?

Probability of a number being rational

Axiom of choice and cartesian product

Is this an existing function?

Why is belonging not transitive?

Transitive Relations: Special case

Probability Proof. $P(A | B) = P(A | B^c)$

Let A,B,C be sets. If A△B=A△C, does this imply that B=C?

Solving $ \{ \varnothing, \{ x\} \} = \{ y, \{ \varnothing \} \}$.

Odd Set Notation (Square Brackets)