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Theorem fucval 17846
Description: Value of the functor category. (Contributed by Mario Carneiro, 6-Jan-2017.)
Hypotheses
Ref Expression
fucval.q 𝑄 = (𝐶 FuncCat 𝐷)
fucval.b 𝐵 = (𝐶 Func 𝐷)
fucval.n 𝑁 = (𝐶 Nat 𝐷)
fucval.a 𝐴 = (Base‘𝐶)
fucval.o · = (comp‘𝐷)
fucval.c (𝜑𝐶 ∈ Cat)
fucval.d (𝜑𝐷 ∈ Cat)
fucval.x (𝜑 = (𝑣 ∈ (𝐵 × 𝐵), 𝐵(1st𝑣) / 𝑓(2nd𝑣) / 𝑔(𝑏 ∈ (𝑔𝑁), 𝑎 ∈ (𝑓𝑁𝑔) ↦ (𝑥𝐴 ↦ ((𝑏𝑥)(⟨((1st𝑓)‘𝑥), ((1st𝑔)‘𝑥)⟩ · ((1st)‘𝑥))(𝑎𝑥))))))
Assertion
Ref Expression
fucval (𝜑𝑄 = {⟨(Base‘ndx), 𝐵⟩, ⟨(Hom ‘ndx), 𝑁⟩, ⟨(comp‘ndx), ⟩})
Distinct variable groups:   𝑣,,𝐵   𝑎,𝑏,𝑓,𝑔,,𝑣,𝑥,𝜑   𝐶,𝑎,𝑏,𝑓,𝑔,,𝑣,𝑥   𝐷,𝑎,𝑏,𝑓,𝑔,,𝑣,𝑥
Allowed substitution hints:   𝐴(𝑥,𝑣,𝑓,𝑔,,𝑎,𝑏)   𝐵(𝑥,𝑓,𝑔,𝑎,𝑏)   𝑄(𝑥,𝑣,𝑓,𝑔,,𝑎,𝑏)   (𝑥,𝑣,𝑓,𝑔,,𝑎,𝑏)   · (𝑥,𝑣,𝑓,𝑔,,𝑎,𝑏)   𝑁(𝑥,𝑣,𝑓,𝑔,,𝑎,𝑏)

Proof of Theorem fucval
Dummy variables 𝑡 𝑢 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 fucval.q . 2 𝑄 = (𝐶 FuncCat 𝐷)
2 df-fuc 17831 . . . 4 FuncCat = (𝑡 ∈ Cat, 𝑢 ∈ Cat ↦ {⟨(Base‘ndx), (𝑡 Func 𝑢)⟩, ⟨(Hom ‘ndx), (𝑡 Nat 𝑢)⟩, ⟨(comp‘ndx), (𝑣 ∈ ((𝑡 Func 𝑢) × (𝑡 Func 𝑢)), ∈ (𝑡 Func 𝑢) ↦ (1st𝑣) / 𝑓(2nd𝑣) / 𝑔(𝑏 ∈ (𝑔(𝑡 Nat 𝑢)), 𝑎 ∈ (𝑓(𝑡 Nat 𝑢)𝑔) ↦ (𝑥 ∈ (Base‘𝑡) ↦ ((𝑏𝑥)(⟨((1st𝑓)‘𝑥), ((1st𝑔)‘𝑥)⟩(comp‘𝑢)((1st)‘𝑥))(𝑎𝑥)))))⟩})
32a1i 11 . . 3 (𝜑 → FuncCat = (𝑡 ∈ Cat, 𝑢 ∈ Cat ↦ {⟨(Base‘ndx), (𝑡 Func 𝑢)⟩, ⟨(Hom ‘ndx), (𝑡 Nat 𝑢)⟩, ⟨(comp‘ndx), (𝑣 ∈ ((𝑡 Func 𝑢) × (𝑡 Func 𝑢)), ∈ (𝑡 Func 𝑢) ↦ (1st𝑣) / 𝑓(2nd𝑣) / 𝑔(𝑏 ∈ (𝑔(𝑡 Nat 𝑢)), 𝑎 ∈ (𝑓(𝑡 Nat 𝑢)𝑔) ↦ (𝑥 ∈ (Base‘𝑡) ↦ ((𝑏𝑥)(⟨((1st𝑓)‘𝑥), ((1st𝑔)‘𝑥)⟩(comp‘𝑢)((1st)‘𝑥))(𝑎𝑥)))))⟩}))
4 simprl 769 . . . . . . 7 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → 𝑡 = 𝐶)
5 simprr 771 . . . . . . 7 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → 𝑢 = 𝐷)
64, 5oveq12d 7375 . . . . . 6 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → (𝑡 Func 𝑢) = (𝐶 Func 𝐷))
7 fucval.b . . . . . 6 𝐵 = (𝐶 Func 𝐷)
86, 7eqtr4di 2794 . . . . 5 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → (𝑡 Func 𝑢) = 𝐵)
98opeq2d 4837 . . . 4 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → ⟨(Base‘ndx), (𝑡 Func 𝑢)⟩ = ⟨(Base‘ndx), 𝐵⟩)
104, 5oveq12d 7375 . . . . . 6 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → (𝑡 Nat 𝑢) = (𝐶 Nat 𝐷))
11 fucval.n . . . . . 6 𝑁 = (𝐶 Nat 𝐷)
1210, 11eqtr4di 2794 . . . . 5 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → (𝑡 Nat 𝑢) = 𝑁)
1312opeq2d 4837 . . . 4 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → ⟨(Hom ‘ndx), (𝑡 Nat 𝑢)⟩ = ⟨(Hom ‘ndx), 𝑁⟩)
148sqxpeqd 5665 . . . . . . 7 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → ((𝑡 Func 𝑢) × (𝑡 Func 𝑢)) = (𝐵 × 𝐵))
1512oveqd 7374 . . . . . . . . . 10 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → (𝑔(𝑡 Nat 𝑢)) = (𝑔𝑁))
1612oveqd 7374 . . . . . . . . . 10 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → (𝑓(𝑡 Nat 𝑢)𝑔) = (𝑓𝑁𝑔))
174fveq2d 6846 . . . . . . . . . . . 12 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → (Base‘𝑡) = (Base‘𝐶))
18 fucval.a . . . . . . . . . . . 12 𝐴 = (Base‘𝐶)
1917, 18eqtr4di 2794 . . . . . . . . . . 11 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → (Base‘𝑡) = 𝐴)
205fveq2d 6846 . . . . . . . . . . . . . 14 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → (comp‘𝑢) = (comp‘𝐷))
21 fucval.o . . . . . . . . . . . . . 14 · = (comp‘𝐷)
2220, 21eqtr4di 2794 . . . . . . . . . . . . 13 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → (comp‘𝑢) = · )
2322oveqd 7374 . . . . . . . . . . . 12 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → (⟨((1st𝑓)‘𝑥), ((1st𝑔)‘𝑥)⟩(comp‘𝑢)((1st)‘𝑥)) = (⟨((1st𝑓)‘𝑥), ((1st𝑔)‘𝑥)⟩ · ((1st)‘𝑥)))
2423oveqd 7374 . . . . . . . . . . 11 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → ((𝑏𝑥)(⟨((1st𝑓)‘𝑥), ((1st𝑔)‘𝑥)⟩(comp‘𝑢)((1st)‘𝑥))(𝑎𝑥)) = ((𝑏𝑥)(⟨((1st𝑓)‘𝑥), ((1st𝑔)‘𝑥)⟩ · ((1st)‘𝑥))(𝑎𝑥)))
2519, 24mpteq12dv 5196 . . . . . . . . . 10 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → (𝑥 ∈ (Base‘𝑡) ↦ ((𝑏𝑥)(⟨((1st𝑓)‘𝑥), ((1st𝑔)‘𝑥)⟩(comp‘𝑢)((1st)‘𝑥))(𝑎𝑥))) = (𝑥𝐴 ↦ ((𝑏𝑥)(⟨((1st𝑓)‘𝑥), ((1st𝑔)‘𝑥)⟩ · ((1st)‘𝑥))(𝑎𝑥))))
2615, 16, 25mpoeq123dv 7432 . . . . . . . . 9 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → (𝑏 ∈ (𝑔(𝑡 Nat 𝑢)), 𝑎 ∈ (𝑓(𝑡 Nat 𝑢)𝑔) ↦ (𝑥 ∈ (Base‘𝑡) ↦ ((𝑏𝑥)(⟨((1st𝑓)‘𝑥), ((1st𝑔)‘𝑥)⟩(comp‘𝑢)((1st)‘𝑥))(𝑎𝑥)))) = (𝑏 ∈ (𝑔𝑁), 𝑎 ∈ (𝑓𝑁𝑔) ↦ (𝑥𝐴 ↦ ((𝑏𝑥)(⟨((1st𝑓)‘𝑥), ((1st𝑔)‘𝑥)⟩ · ((1st)‘𝑥))(𝑎𝑥)))))
2726csbeq2dv 3862 . . . . . . . 8 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → (2nd𝑣) / 𝑔(𝑏 ∈ (𝑔(𝑡 Nat 𝑢)), 𝑎 ∈ (𝑓(𝑡 Nat 𝑢)𝑔) ↦ (𝑥 ∈ (Base‘𝑡) ↦ ((𝑏𝑥)(⟨((1st𝑓)‘𝑥), ((1st𝑔)‘𝑥)⟩(comp‘𝑢)((1st)‘𝑥))(𝑎𝑥)))) = (2nd𝑣) / 𝑔(𝑏 ∈ (𝑔𝑁), 𝑎 ∈ (𝑓𝑁𝑔) ↦ (𝑥𝐴 ↦ ((𝑏𝑥)(⟨((1st𝑓)‘𝑥), ((1st𝑔)‘𝑥)⟩ · ((1st)‘𝑥))(𝑎𝑥)))))
2827csbeq2dv 3862 . . . . . . 7 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → (1st𝑣) / 𝑓(2nd𝑣) / 𝑔(𝑏 ∈ (𝑔(𝑡 Nat 𝑢)), 𝑎 ∈ (𝑓(𝑡 Nat 𝑢)𝑔) ↦ (𝑥 ∈ (Base‘𝑡) ↦ ((𝑏𝑥)(⟨((1st𝑓)‘𝑥), ((1st𝑔)‘𝑥)⟩(comp‘𝑢)((1st)‘𝑥))(𝑎𝑥)))) = (1st𝑣) / 𝑓(2nd𝑣) / 𝑔(𝑏 ∈ (𝑔𝑁), 𝑎 ∈ (𝑓𝑁𝑔) ↦ (𝑥𝐴 ↦ ((𝑏𝑥)(⟨((1st𝑓)‘𝑥), ((1st𝑔)‘𝑥)⟩ · ((1st)‘𝑥))(𝑎𝑥)))))
2914, 8, 28mpoeq123dv 7432 . . . . . 6 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → (𝑣 ∈ ((𝑡 Func 𝑢) × (𝑡 Func 𝑢)), ∈ (𝑡 Func 𝑢) ↦ (1st𝑣) / 𝑓(2nd𝑣) / 𝑔(𝑏 ∈ (𝑔(𝑡 Nat 𝑢)), 𝑎 ∈ (𝑓(𝑡 Nat 𝑢)𝑔) ↦ (𝑥 ∈ (Base‘𝑡) ↦ ((𝑏𝑥)(⟨((1st𝑓)‘𝑥), ((1st𝑔)‘𝑥)⟩(comp‘𝑢)((1st)‘𝑥))(𝑎𝑥))))) = (𝑣 ∈ (𝐵 × 𝐵), 𝐵(1st𝑣) / 𝑓(2nd𝑣) / 𝑔(𝑏 ∈ (𝑔𝑁), 𝑎 ∈ (𝑓𝑁𝑔) ↦ (𝑥𝐴 ↦ ((𝑏𝑥)(⟨((1st𝑓)‘𝑥), ((1st𝑔)‘𝑥)⟩ · ((1st)‘𝑥))(𝑎𝑥))))))
30 fucval.x . . . . . . 7 (𝜑 = (𝑣 ∈ (𝐵 × 𝐵), 𝐵(1st𝑣) / 𝑓(2nd𝑣) / 𝑔(𝑏 ∈ (𝑔𝑁), 𝑎 ∈ (𝑓𝑁𝑔) ↦ (𝑥𝐴 ↦ ((𝑏𝑥)(⟨((1st𝑓)‘𝑥), ((1st𝑔)‘𝑥)⟩ · ((1st)‘𝑥))(𝑎𝑥))))))
3130adantr 481 . . . . . 6 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → = (𝑣 ∈ (𝐵 × 𝐵), 𝐵(1st𝑣) / 𝑓(2nd𝑣) / 𝑔(𝑏 ∈ (𝑔𝑁), 𝑎 ∈ (𝑓𝑁𝑔) ↦ (𝑥𝐴 ↦ ((𝑏𝑥)(⟨((1st𝑓)‘𝑥), ((1st𝑔)‘𝑥)⟩ · ((1st)‘𝑥))(𝑎𝑥))))))
3229, 31eqtr4d 2779 . . . . 5 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → (𝑣 ∈ ((𝑡 Func 𝑢) × (𝑡 Func 𝑢)), ∈ (𝑡 Func 𝑢) ↦ (1st𝑣) / 𝑓(2nd𝑣) / 𝑔(𝑏 ∈ (𝑔(𝑡 Nat 𝑢)), 𝑎 ∈ (𝑓(𝑡 Nat 𝑢)𝑔) ↦ (𝑥 ∈ (Base‘𝑡) ↦ ((𝑏𝑥)(⟨((1st𝑓)‘𝑥), ((1st𝑔)‘𝑥)⟩(comp‘𝑢)((1st)‘𝑥))(𝑎𝑥))))) = )
3332opeq2d 4837 . . . 4 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → ⟨(comp‘ndx), (𝑣 ∈ ((𝑡 Func 𝑢) × (𝑡 Func 𝑢)), ∈ (𝑡 Func 𝑢) ↦ (1st𝑣) / 𝑓(2nd𝑣) / 𝑔(𝑏 ∈ (𝑔(𝑡 Nat 𝑢)), 𝑎 ∈ (𝑓(𝑡 Nat 𝑢)𝑔) ↦ (𝑥 ∈ (Base‘𝑡) ↦ ((𝑏𝑥)(⟨((1st𝑓)‘𝑥), ((1st𝑔)‘𝑥)⟩(comp‘𝑢)((1st)‘𝑥))(𝑎𝑥)))))⟩ = ⟨(comp‘ndx), ⟩)
349, 13, 33tpeq123d 4709 . . 3 ((𝜑 ∧ (𝑡 = 𝐶𝑢 = 𝐷)) → {⟨(Base‘ndx), (𝑡 Func 𝑢)⟩, ⟨(Hom ‘ndx), (𝑡 Nat 𝑢)⟩, ⟨(comp‘ndx), (𝑣 ∈ ((𝑡 Func 𝑢) × (𝑡 Func 𝑢)), ∈ (𝑡 Func 𝑢) ↦ (1st𝑣) / 𝑓(2nd𝑣) / 𝑔(𝑏 ∈ (𝑔(𝑡 Nat 𝑢)), 𝑎 ∈ (𝑓(𝑡 Nat 𝑢)𝑔) ↦ (𝑥 ∈ (Base‘𝑡) ↦ ((𝑏𝑥)(⟨((1st𝑓)‘𝑥), ((1st𝑔)‘𝑥)⟩(comp‘𝑢)((1st)‘𝑥))(𝑎𝑥)))))⟩} = {⟨(Base‘ndx), 𝐵⟩, ⟨(Hom ‘ndx), 𝑁⟩, ⟨(comp‘ndx), ⟩})
35 fucval.c . . 3 (𝜑𝐶 ∈ Cat)
36 fucval.d . . 3 (𝜑𝐷 ∈ Cat)
37 tpex 7681 . . . 4 {⟨(Base‘ndx), 𝐵⟩, ⟨(Hom ‘ndx), 𝑁⟩, ⟨(comp‘ndx), ⟩} ∈ V
3837a1i 11 . . 3 (𝜑 → {⟨(Base‘ndx), 𝐵⟩, ⟨(Hom ‘ndx), 𝑁⟩, ⟨(comp‘ndx), ⟩} ∈ V)
393, 34, 35, 36, 38ovmpod 7507 . 2 (𝜑 → (𝐶 FuncCat 𝐷) = {⟨(Base‘ndx), 𝐵⟩, ⟨(Hom ‘ndx), 𝑁⟩, ⟨(comp‘ndx), ⟩})
401, 39eqtrid 2788 1 (𝜑𝑄 = {⟨(Base‘ndx), 𝐵⟩, ⟨(Hom ‘ndx), 𝑁⟩, ⟨(comp‘ndx), ⟩})
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 396   = wceq 1541  wcel 2106  Vcvv 3445  csb 3855  {ctp 4590  cop 4592  cmpt 5188   × cxp 5631  cfv 6496  (class class class)co 7357  cmpo 7359  1st c1st 7919  2nd c2nd 7920  ndxcnx 17065  Basecbs 17083  Hom chom 17144  compcco 17145  Catccat 17544   Func cfunc 17740   Nat cnat 17828   FuncCat cfuc 17829
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1913  ax-6 1971  ax-7 2011  ax-8 2108  ax-9 2116  ax-10 2137  ax-11 2154  ax-12 2171  ax-ext 2707  ax-sep 5256  ax-nul 5263  ax-pr 5384  ax-un 7672
This theorem depends on definitions:  df-bi 206  df-an 397  df-or 846  df-3an 1089  df-tru 1544  df-fal 1554  df-ex 1782  df-nf 1786  df-sb 2068  df-mo 2538  df-eu 2567  df-clab 2714  df-cleq 2728  df-clel 2814  df-nfc 2889  df-ral 3065  df-rex 3074  df-rab 3408  df-v 3447  df-sbc 3740  df-csb 3856  df-dif 3913  df-un 3915  df-in 3917  df-ss 3927  df-nul 4283  df-if 4487  df-sn 4587  df-pr 4589  df-tp 4591  df-op 4593  df-uni 4866  df-br 5106  df-opab 5168  df-mpt 5189  df-id 5531  df-xp 5639  df-rel 5640  df-cnv 5641  df-co 5642  df-dm 5643  df-iota 6448  df-fun 6498  df-fv 6504  df-ov 7360  df-oprab 7361  df-mpo 7362  df-fuc 17831
This theorem is referenced by:  fuccofval  17847  fucbas  17848  fuchom  17849  fuchomOLD  17850  fucpropd  17866  catcfuccl  18005  catcfucclOLD  18006
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