Theorem homfval 17704

Description: Value of the functionalized Hom-set operation. (Contributed by Mario Carneiro, 4-Jan-2017.)

Hypotheses

Ref	Expression
homffval.f	⊢ 𝐹 = (Homf ‘𝐶)
homffval.b	⊢ 𝐵 = (Base‘𝐶)
homffval.h	⊢ 𝐻 = (Hom ‘𝐶)
homfval.x	⊢ (𝜑 → 𝑋 ∈ 𝐵)
homfval.y	⊢ (𝜑 → 𝑌 ∈ 𝐵)

Assertion

Ref	Expression
homfval	⊢ (𝜑 → (𝑋𝐹𝑌) = (𝑋𝐻𝑌))

Proof of Theorem homfval

Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		homffval.f	. . . 4 ⊢ 𝐹 = (Homf ‘𝐶)
2		homffval.b	. . . 4 ⊢ 𝐵 = (Base‘𝐶)
3		homffval.h	. . . 4 ⊢ 𝐻 = (Hom ‘𝐶)
4	1, 2, 3	homffval 17702	. . 3 ⊢ 𝐹 = (𝑥 ∈ 𝐵, 𝑦 ∈ 𝐵 ↦ (𝑥𝐻𝑦))
5	4	a1i 11	. 2 ⊢ (𝜑 → 𝐹 = (𝑥 ∈ 𝐵, 𝑦 ∈ 𝐵 ↦ (𝑥𝐻𝑦)))
6		oveq12 7414	. . 3 ⊢ ((𝑥 = 𝑋 ∧ 𝑦 = 𝑌) → (𝑥𝐻𝑦) = (𝑋𝐻𝑌))
7	6	adantl 481	. 2 ⊢ ((𝜑 ∧ (𝑥 = 𝑋 ∧ 𝑦 = 𝑌)) → (𝑥𝐻𝑦) = (𝑋𝐻𝑌))
8		homfval.x	. 2 ⊢ (𝜑 → 𝑋 ∈ 𝐵)
9		homfval.y	. 2 ⊢ (𝜑 → 𝑌 ∈ 𝐵)
10		ovexd 7440	. 2 ⊢ (𝜑 → (𝑋𝐻𝑌) ∈ V)
11	5, 7, 8, 9, 10	ovmpod 7559	1 ⊢ (𝜑 → (𝑋𝐹𝑌) = (𝑋𝐻𝑌))

Syntax hints:   → wi 4   ∧ wa 395   = wceq 1540   ∈ wcel 2108  Vcvv 3459  ‘cfv 6531  (class class class)co 7405   ∈ cmpo 7407  Basecbs 17228  Hom chom 17282  Hom_f chomf 17678

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2007  ax-8 2110  ax-9 2118  ax-10 2141  ax-11 2157  ax-12 2177  ax-ext 2707  ax-rep 5249  ax-sep 5266  ax-nul 5276  ax-pow 5335  ax-pr 5402  ax-un 7729

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1780  df-nf 1784  df-sb 2065  df-mo 2539  df-eu 2568  df-clab 2714  df-cleq 2727  df-clel 2809  df-nfc 2885  df-ne 2933  df-ral 3052  df-rex 3061  df-reu 3360  df-rab 3416  df-v 3461  df-sbc 3766  df-csb 3875  df-dif 3929  df-un 3931  df-in 3933  df-ss 3943  df-nul 4309  df-if 4501  df-pw 4577  df-sn 4602  df-pr 4604  df-op 4608  df-uni 4884  df-iun 4969  df-br 5120  df-opab 5182  df-mpt 5202  df-id 5548  df-xp 5660  df-rel 5661  df-cnv 5662  df-co 5663  df-dm 5664  df-rn 5665  df-res 5666  df-ima 5667  df-iota 6484  df-fun 6533  df-fn 6534  df-f 6535  df-f1 6536  df-fo 6537  df-f1o 6538  df-fv 6539  df-ov 7408  df-oprab 7409  df-mpo 7410  df-1st 7988  df-2nd 7989  df-homf 17682

This theorem is referenced by:  homfeqval  17709  comfffval2  17713  comffval2  17714  comfval2  17715  catsubcat  17852  subcss2  17856  fullsubc  17863  fullresc  17864  funcres2c  17916  hof1  18266  hofcllem  18270  hofcl  18271  yonffthlem  18294  srhmsubc  20640  srhmsubcALTV  48300  oppcendc  48993  discsubc  49031  ssccatid  49039  imaidfu  49069  imasubc  49091  imassc  49093  setc1onsubc  49479