set-extent-ax

Top-level context. Axiom of Extensionality (for sets)

Primitive symbols:

SymComment
(ainb)

Axioms:

NameComment
ax-el<
ax-el>
ax-ext

Definitions:

NameSymComment
df-bvtstopsignxa
df-nel(anotinb)
df-neq(aneb)
df-psub(asubsetb)
df-sbtstopsignaxNILNIL
df-sub(asubseteqb)