Theorem oveq1d

Description: Equality deduction for operation value. (Contributed by NM, 13-Mar-1995)

	Ref	Expression
Hypothesis	oveq1d.1	$$⊢\phi \to A=B$$
Assertion	oveq1d	$$⊢\phi \to AFC=BFC$$

Proof

Step	Hyp	Ref	Expression
1		oveq1d.1	$$⊢\phi \to A=B$$
2		oveq1	$$⊢A=B\to AFC=BFC$$
3	1 2	syl	$$⊢\phi \to AFC=BFC$$