ZFC

 

English Wikipedia has an article on:

Zermelo–Fraenkel set theory

Wikipedia

ZFC (uncountable)

1. (set theory) Initialism of Zermelo-Fraenkel set theory with Choice; the standard axiomatization of set theory, including the axiom of choice.
2. (physics) Initialism of zero-field cooling; the act of cooling with no magnetic field applied

• (formulations of set theory): ZF, NBG