MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  elhoma Structured version   Visualization version   GIF version

Theorem elhoma 18207
Description: Value of the disjointified hom-set function. (Contributed by Mario Carneiro, 11-Jan-2017.)
Hypotheses
Ref Expression
homarcl.h 𝐻 = (Homa‘𝐶)
homafval.b 𝐵 = (Base‘𝐶)
homafval.c (𝜑 → 𝐶 ∈ Cat)
homaval.j 𝐽 = (Hom ‘𝐶)
homaval.x (𝜑 → 𝑋 ∈ 𝐵)
homaval.y (𝜑 → 𝑌 ∈ 𝐵)
Assertion
Ref Expression
elhoma (𝜑 → (𝑍(𝑋𝐻𝑌)𝐹 ↔ (𝑍 = ⟨𝑋, 𝑌⟩ ∧ 𝐹 ∈ (𝑋𝐽𝑌))))

Proof of Theorem elhoma
StepHypRef Expression
1 homarcl.h . . . 4 𝐻 = (Homa‘𝐶)
2 homafval.b . . . 4 𝐵 = (Base‘𝐶)
3 homafval.c . . . 4 (𝜑 → 𝐶 ∈ Cat)
4 homaval.j . . . 4 𝐽 = (Hom ‘𝐶)
5 homaval.x . . . 4 (𝜑 → 𝑋 ∈ 𝐵)
6 homaval.y . . . 4 (𝜑 → 𝑌 ∈ 𝐵)
71, 2, 3, 4, 5, 6homaval 18206 . . 3 (𝜑 → (𝑋𝐻𝑌) = ({⟨𝑋, 𝑌⟩} × (𝑋𝐽𝑌)))
87breqd 5114 . 2 (𝜑 → (𝑍(𝑋𝐻𝑌)𝐹 ↔ 𝑍({⟨𝑋, 𝑌⟩} × (𝑋𝐽𝑌))𝐹))
9 brxp 5700 . . 3 (𝑍({⟨𝑋, 𝑌⟩} × (𝑋𝐽𝑌))𝐹 ↔ (𝑍 ∈ {⟨𝑋, 𝑌⟩} ∧ 𝐹 ∈ (𝑋𝐽𝑌)))
10 opex 5432 . . . . 5 ⟨𝑋, 𝑌⟩ ∈ V
1110elsn2 4626 . . . 4 (𝑍 ∈ {⟨𝑋, 𝑌⟩} ↔ 𝑍 = ⟨𝑋, 𝑌⟩)
1211anbi1i 636 . . 3 ((𝑍 ∈ {⟨𝑋, 𝑌⟩} ∧ 𝐹 ∈ (𝑋𝐽𝑌)) ↔ (𝑍 = ⟨𝑋, 𝑌⟩ ∧ 𝐹 ∈ (𝑋𝐽𝑌)))
139, 12bitri 278 . 2 (𝑍({⟨𝑋, 𝑌⟩} × (𝑋𝐽𝑌))𝐹 ↔ (𝑍 = ⟨𝑋, 𝑌⟩ ∧ 𝐹 ∈ (𝑋𝐽𝑌)))
148, 13bitrdi 290 1 (𝜑 → (𝑍(𝑋𝐻𝑌)𝐹 ↔ (𝑍 = ⟨𝑋, 𝑌⟩ ∧ 𝐹 ∈ (𝑋𝐽𝑌))))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   → wi 4   ↔ wb 209   ∧ wa 401   = wceq 1570   ∈ wcel 2145  {csn 4584  ⟨cop 4590   class class class wbr 5103   × cxp 5649  ‘cfv 6538  (class class class)co 7420  Basecbs 17387  Hom chom 17439  Catccat 17838  Homachoma 18198
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2147  ax-9 2155  ax-10 2178  ax-11 2194  ax-12 2213  ax-ext 2733  ax-rep 5232  ax-sep 5249  ax-nul 5260  ax-pow 5327  ax-pr 5391  ax-un 7751
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-mo 2565  df-eu 2595  df-clab 2740  df-cleq 2753  df-clel 2836  df-nfc 2910  df-ne 2957  df-ral 3078  df-rex 3088  df-reu 3367  df-rab 3414  df-v 3453  df-sbc 3740  df-csb 3848  df-dif 3902  df-un 3904  df-in 3906  df-ss 3916  df-nul 4280  df-if 4483  df-pw 4559  df-sn 4585  df-pr 4587  df-op 4591  df-uni 4868  df-iun 4953  df-br 5104  df-opab 5168  df-mpt 5187  df-id 5546  df-xp 5657  df-rel 5658  df-cnv 5659  df-co 5660  df-dm 5661  df-rn 5662  df-res 5663  df-ima 5664  df-iota 6494  df-fun 6540  df-fn 6541  df-f 6542  df-f1 6543  df-fo 6544  df-f1o 6545  df-fv 6546  df-ov 7423  df-homa 18201
This theorem is used by:  elhomai  18208  homa1  18212  homahom2  18213
  Copyright terms: Public domain W3C validator