Theorem ofmresval 7694

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 7580	. 2 ⊢ ((𝐹 ∈ 𝐴 ∧ 𝐺 ∈ 𝐵) → (𝐹( ∘f 𝑅 ↾ (𝐴 × 𝐵))𝐺) = (𝐹 ∘f 𝑅𝐺))
4	1, 2, 3	syl2anc 595	1 ⊢ (𝜑 → (𝐹( ∘f 𝑅 ↾ (𝐴 × 𝐵))𝐺) = (𝐹 ∘f 𝑅𝐺))

Syntax hints:   → wi 4   = wceq 1568   ∈ wcel 2150   × cxp 5663   ↾ cres 5667  (class class class)co 7414   ∘_f cof 7676

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1823  ax-4 1837  ax-5 1938  ax-6 1995  ax-7 2036  ax-8 2152  ax-9 2160  ax-ext 2742  ax-sep 5262  ax-pr 5408

This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1103  df-tru 1571  df-fal 1581  df-ex 1808  df-sb 2099  df-clab 2749  df-cleq 2762  df-clel 2845  df-ral 3087  df-rex 3097  df-rab 3424  df-v 3464  df-dif 3916  df-un 3918  df-in 3920  df-ss 3930  df-nul 4295  df-if 4493  df-sn 4595  df-pr 4597  df-op 4601  df-uni 4878  df-br 5115  df-opab 5179  df-xp 5671  df-res 5677  df-iota 6496  df-fv 6548  df-ov 7417

This theorem is referenced by:  psradd  22071  dchrmul  27392  ldualvadd  39853