New posts in Set Theory

Uncountable sets in countable models of ZFC

How to identify limit ordinals?

Is every subset of a set a set?

Axiom of binary choice vs Axiom of finite choice

How does the axiom of regularity make sense?

Can $\mathbb{R}^{+}$ be divided into two disjoint sets so that each set is closed under both addition and multiplication?

Existence of the transitive closure for sets

How do we know what natural numbers are?

Strange consequences of Axiom of Choice in Zermelo set theory

What is the difference between cardinals and alephs?