Theorem oveq123d 5553

Description: Equality deduction for operation value. (Contributed by FL, 22-Dec-2008.)

Hypotheses

Ref	Expression
oveq123d.1	⊢ (𝜑 → 𝐹 = 𝐺)
oveq123d.2	⊢ (𝜑 → 𝐴 = 𝐵)
oveq123d.3	⊢ (𝜑 → 𝐶 = 𝐷)

Assertion

Ref	Expression
oveq123d	⊢ (𝜑 → (𝐴𝐹𝐶) = (𝐵𝐺𝐷))

Proof of Theorem oveq123d

Step	Hyp	Ref	Expression
1		oveq123d.1	. . 3 ⊢ (𝜑 → 𝐹 = 𝐺)
2	1	oveqd 5549	. 2 ⊢ (𝜑 → (𝐴𝐹𝐶) = (𝐴𝐺𝐶))
3		oveq123d.2	. . 3 ⊢ (𝜑 → 𝐴 = 𝐵)
4		oveq123d.3	. . 3 ⊢ (𝜑 → 𝐶 = 𝐷)
5	3, 4	oveq12d 5550	. 2 ⊢ (𝜑 → (𝐴𝐺𝐶) = (𝐵𝐺𝐷))
6	2, 5	eqtrd 2113	1 ⊢ (𝜑 → (𝐴𝐹𝐶) = (𝐵𝐺𝐷))

Syntax hints:   → wi 4   = wceq 1284  (class class class)co 5532

This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 104  ax-ia2 105  ax-ia3 106  ax-io 662  ax-5 1376  ax-7 1377  ax-gen 1378  ax-ie1 1422  ax-ie2 1423  ax-8 1435  ax-10 1436  ax-11 1437  ax-i12 1438  ax-bndl 1439  ax-4 1440  ax-17 1459  ax-i9 1463  ax-ial 1467  ax-i5r 1468  ax-ext 2063

This theorem depends on definitions:  df-bi 115  df-3an 921  df-tru 1287  df-nf 1390  df-sb 1686  df-clab 2068  df-cleq 2074  df-clel 2077  df-nfc 2208  df-rex 2354  df-v 2603  df-un 2977  df-sn 3404  df-pr 3405  df-op 3407  df-uni 3602  df-br 3786  df-iota 4887  df-fv 4930  df-ov 5535

This theorem is referenced by:  csbov123g  5563