Set theory - Axiom of specification
126862
Confused about $x \notin x$ example in Axiom of Specification
115675
Strange consequences of Axiom of Choice in Zermelo set theory
950
Doubts on the axiom of union?
13661
Axiom of Regularity allows for this set be an element of itself
142840
Open axioms of equality
151215
Paradox of General Comprehension in Set Theory, other than Russell's Paradox
58631
Continuity and the Axiom of Choice
95042
Textbooks on set theory
59820
ZF Extensionality axiom
45623
Axiom of Choice: What exactly is a choice, and when and why is it needed?
135025
Axiomatization of a Topology using the Boundary
9330
Meaning behind Filter in Set Theory
21202
Axiom of choice is equivalent to every relation includes a function with the same domain
155207
Confusion regarding one formulation of the Axiom of Choice.
137203
Measurable cardinal existence condition
31212
The existence of the empty set is an axiom of ZFC or not?
116527
Validating a proof for necessary and sufficient conditions on sets A & B such that $P(A) \cup P(B) = P(A\cup B)$