Set theory

[1050/63%]

Subtopics

Sets, relations, and functions[423/68%]
Cardinal numbers[276/57%]
Order relations and lattices[170/78%]
Ordinal numbers[65/58%]
Equivalence relations and naive set theory[55/64%]
Filters and ultrafilters on a set[54/26%]
Zorn's lemma[20/50%]
Axiom of choice and its equivalents[12/42%]
Axiomatic set theory[7/43%]
Finite sets and basic cardinal facts[4/50%]
Counting subsets built from Boolean set operations[2/100%]
Set-theoretic paradoxes[2/100%]