Theorem oveq

Description: Equality theorem for operation value. (Contributed by NM, 28-Feb-1995)

	Ref	Expression
Assertion	oveq	$$⊢F=G\to AFB=AGB$$

Proof

Step	Hyp	Ref	Expression
1		fveq1	$$⊢F=G\to F\left(⟨A,B⟩\right)=G\left(⟨A,B⟩\right)$$
2		df-ov	$$⊢AFB=F\left(⟨A,B⟩\right)$$
3		df-ov	$$⊢AGB=G\left(⟨A,B⟩\right)$$
4	1 2 3	3eqtr4g	$$⊢F=G\to AFB=AGB$$