Theorem ofmresval 7175

Description: Value of a restriction of the function operation map. (Contributed by NM, 20-Oct-2014.)

Hypotheses

Ref	Expression
ofmresval.f	⊢ (𝜑 → 𝐹 ∈ 𝐴)
ofmresval.g	⊢ (𝜑 → 𝐺 ∈ 𝐵)

Assertion

Ref	Expression
ofmresval	⊢ (𝜑 → (𝐹( ∘𝑓 𝑅 ↾ (𝐴 × 𝐵))𝐺) = (𝐹 ∘𝑓 𝑅𝐺))

Proof of Theorem ofmresval

Step	Hyp	Ref	Expression
1		ofmresval.f	. 2 ⊢ (𝜑 → 𝐹 ∈ 𝐴)
2		ofmresval.g	. 2 ⊢ (𝜑 → 𝐺 ∈ 𝐵)
3		ovres 7065	. 2 ⊢ ((𝐹 ∈ 𝐴 ∧ 𝐺 ∈ 𝐵) → (𝐹( ∘𝑓 𝑅 ↾ (𝐴 × 𝐵))𝐺) = (𝐹 ∘𝑓 𝑅𝐺))
4	1, 2, 3	syl2anc 579	1 ⊢ (𝜑 → (𝐹( ∘𝑓 𝑅 ↾ (𝐴 × 𝐵))𝐺) = (𝐹 ∘𝑓 𝑅𝐺))

Syntax hints:   → wi 4   = wceq 1656   ∈ wcel 2164   × cxp 5344   ↾ cres 5348  (class class class)co 6910   ∘_𝑓 cof 7160

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1894  ax-4 1908  ax-5 2009  ax-6 2075  ax-7 2112  ax-9 2173  ax-10 2192  ax-11 2207  ax-12 2220  ax-13 2389  ax-ext 2803  ax-sep 5007  ax-nul 5015  ax-pr 5129

This theorem depends on definitions:  df-bi 199  df-an 387  df-or 879  df-3an 1113  df-tru 1660  df-ex 1879  df-nf 1883  df-sb 2068  df-clab 2812  df-cleq 2818  df-clel 2821  df-nfc 2958  df-ral 3122  df-rex 3123  df-rab 3126  df-v 3416  df-dif 3801  df-un 3803  df-in 3805  df-ss 3812  df-nul 4147  df-if 4309  df-sn 4400  df-pr 4402  df-op 4406  df-uni 4661  df-br 4876  df-opab 4938  df-xp 5352  df-res 5358  df-iota 6090  df-fv 6135  df-ov 6913

This theorem is referenced by:  psradd  19750  dchrmul  25393  ldualvadd  35203