Theorem ofmresval 7626

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 7512	. 2 ⊢ ((𝐹 ∈ 𝐴 ∧ 𝐺 ∈ 𝐵) → (𝐹( ∘f 𝑅 ↾ (𝐴 × 𝐵))𝐺) = (𝐹 ∘f 𝑅𝐺))
4	1, 2, 3	syl2anc 584	1 ⊢ (𝜑 → (𝐹( ∘f 𝑅 ↾ (𝐴 × 𝐵))𝐺) = (𝐹 ∘f 𝑅𝐺))

Syntax hints:   → wi 4   = wceq 1541   ∈ wcel 2111   × cxp 5612   ↾ cres 5616  (class class class)co 7346   ∘_f cof 7608

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1968  ax-7 2009  ax-8 2113  ax-9 2121  ax-ext 2703  ax-sep 5232  ax-nul 5242  ax-pr 5368

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1544  df-fal 1554  df-ex 1781  df-sb 2068  df-clab 2710  df-cleq 2723  df-clel 2806  df-ral 3048  df-rex 3057  df-rab 3396  df-v 3438  df-dif 3900  df-un 3902  df-in 3904  df-ss 3914  df-nul 4281  df-if 4473  df-sn 4574  df-pr 4576  df-op 4580  df-uni 4857  df-br 5090  df-opab 5152  df-xp 5620  df-res 5626  df-iota 6437  df-fv 6489  df-ov 7349

This theorem is referenced by:  psradd  21874  dchrmul  27186  ldualvadd  39176