Theorem ovex

Description: The result of an operation is a set. (Contributed by NM, 13-Mar-1995)

	Ref	Expression
Assertion	ovex	|- ( A F B ) e. _V

Proof

Step	Hyp	Ref	Expression
1		df-ov	|- ( A F B ) = ( F ` <. A , B >. )
2	1	fvexi	|- ( A F B ) e. _V