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Theorem funcsetcestrclem5 18174
Description: Lemma 5 for funcsetcestrc 18179. (Contributed by AV, 27-Mar-2020.)
Hypotheses
Ref Expression
funcsetcestrc.s 𝑆 = (SetCat‘𝑈)
funcsetcestrc.c 𝐶 = (Base‘𝑆)
funcsetcestrc.f (𝜑𝐹 = (𝑥𝐶 ↦ {⟨(Base‘ndx), 𝑥⟩}))
funcsetcestrc.u (𝜑𝑈 ∈ WUni)
funcsetcestrc.o (𝜑 → ω ∈ 𝑈)
funcsetcestrc.g (𝜑𝐺 = (𝑥𝐶, 𝑦𝐶 ↦ ( I ↾ (𝑦m 𝑥))))
Assertion
Ref Expression
funcsetcestrclem5 ((𝜑 ∧ (𝑋𝐶𝑌𝐶)) → (𝑋𝐺𝑌) = ( I ↾ (𝑌m 𝑋)))
Distinct variable groups:   𝑥,𝐶   𝑥,𝑋   𝜑,𝑥   𝑦,𝐶,𝑥   𝑦,𝑋   𝑥,𝑌,𝑦   𝜑,𝑦
Allowed substitution hints:   𝑆(𝑥,𝑦)   𝑈(𝑥,𝑦)   𝐹(𝑥,𝑦)   𝐺(𝑥,𝑦)

Proof of Theorem funcsetcestrclem5
StepHypRef Expression
1 funcsetcestrc.g . . 3 (𝜑𝐺 = (𝑥𝐶, 𝑦𝐶 ↦ ( I ↾ (𝑦m 𝑥))))
21adantr 484 . 2 ((𝜑 ∧ (𝑋𝐶𝑌𝐶)) → 𝐺 = (𝑥𝐶, 𝑦𝐶 ↦ ( I ↾ (𝑦m 𝑥))))
3 oveq12 7401 . . . . 5 ((𝑦 = 𝑌𝑥 = 𝑋) → (𝑦m 𝑥) = (𝑌m 𝑋))
43ancoms 462 . . . 4 ((𝑥 = 𝑋𝑦 = 𝑌) → (𝑦m 𝑥) = (𝑌m 𝑋))
54reseq2d 5963 . . 3 ((𝑥 = 𝑋𝑦 = 𝑌) → ( I ↾ (𝑦m 𝑥)) = ( I ↾ (𝑌m 𝑋)))
65adantl 485 . 2 (((𝜑 ∧ (𝑋𝐶𝑌𝐶)) ∧ (𝑥 = 𝑋𝑦 = 𝑌)) → ( I ↾ (𝑦m 𝑥)) = ( I ↾ (𝑌m 𝑋)))
7 simprl 780 . 2 ((𝜑 ∧ (𝑋𝐶𝑌𝐶)) → 𝑋𝐶)
8 simprr 782 . 2 ((𝜑 ∧ (𝑋𝐶𝑌𝐶)) → 𝑌𝐶)
9 ovexd 7427 . . 3 ((𝜑 ∧ (𝑋𝐶𝑌𝐶)) → (𝑌m 𝑋) ∈ V)
109resiexd 7196 . 2 ((𝜑 ∧ (𝑋𝐶𝑌𝐶)) → ( I ↾ (𝑌m 𝑋)) ∈ V)
112, 6, 7, 8, 10ovmpod 7544 1 ((𝜑 ∧ (𝑋𝐶𝑌𝐶)) → (𝑋𝐺𝑌) = ( I ↾ (𝑌m 𝑋)))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 399   = wceq 1559  wcel 2141  Vcvv 3453  {csn 4581  cop 4587  cmpt 5180   I cid 5539  cres 5647  cfv 6517  (class class class)co 7392  cmpo 7394  ωcom 7842  m cmap 8803  WUnicwun 10655  ndxcnx 17212  Basecbs 17228  SetCatcsetc 18091
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1814  ax-4 1828  ax-5 1929  ax-6 1986  ax-7 2027  ax-8 2143  ax-9 2151  ax-10 2174  ax-11 2190  ax-12 2211  ax-ext 2733  ax-rep 5226  ax-sep 5245  ax-nul 5255  ax-pr 5389
This theorem depends on definitions:  df-bi 209  df-an 400  df-or 859  df-3an 1099  df-tru 1562  df-fal 1572  df-ex 1799  df-nf 1803  df-sb 2090  df-mo 2565  df-eu 2595  df-clab 2740  df-cleq 2753  df-clel 2836  df-nfc 2910  df-ne 2957  df-ral 3076  df-rex 3086  df-reu 3367  df-rab 3414  df-v 3455  df-sbc 3745  df-csb 3853  df-dif 3907  df-un 3909  df-in 3911  df-ss 3921  df-nul 4286  df-if 4480  df-sn 4582  df-pr 4584  df-op 4588  df-uni 4865  df-iun 4950  df-br 5100  df-opab 5162  df-mpt 5181  df-id 5540  df-xp 5651  df-rel 5652  df-cnv 5653  df-co 5654  df-dm 5655  df-rn 5656  df-res 5657  df-ima 5658  df-iota 6473  df-fun 6519  df-fn 6520  df-f 6521  df-f1 6522  df-fo 6523  df-f1o 6524  df-fv 6525  df-ov 7395  df-oprab 7396  df-mpo 7397
This theorem is referenced by:  funcsetcestrclem6  18175  funcsetcestrclem7  18176  funcsetcestrclem8  18177  funcsetcestrclem9  18178
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