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Theorem funcsetcestrclem5 18127
Description: Lemma 5 for funcsetcestrc 18132. (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 480 . 2 ((𝜑 ∧ (𝑋𝐶𝑌𝐶)) → 𝐺 = (𝑥𝐶, 𝑦𝐶 ↦ ( I ↾ (𝑦m 𝑥))))
3 oveq12 7399 . . . . 5 ((𝑦 = 𝑌𝑥 = 𝑋) → (𝑦m 𝑥) = (𝑌m 𝑋))
43ancoms 458 . . . 4 ((𝑥 = 𝑋𝑦 = 𝑌) → (𝑦m 𝑥) = (𝑌m 𝑋))
54reseq2d 5953 . . 3 ((𝑥 = 𝑋𝑦 = 𝑌) → ( I ↾ (𝑦m 𝑥)) = ( I ↾ (𝑌m 𝑋)))
65adantl 481 . 2 (((𝜑 ∧ (𝑋𝐶𝑌𝐶)) ∧ (𝑥 = 𝑋𝑦 = 𝑌)) → ( I ↾ (𝑦m 𝑥)) = ( I ↾ (𝑌m 𝑋)))
7 simprl 770 . 2 ((𝜑 ∧ (𝑋𝐶𝑌𝐶)) → 𝑋𝐶)
8 simprr 772 . 2 ((𝜑 ∧ (𝑋𝐶𝑌𝐶)) → 𝑌𝐶)
9 ovexd 7425 . . 3 ((𝜑 ∧ (𝑋𝐶𝑌𝐶)) → (𝑌m 𝑋) ∈ V)
109resiexd 7193 . 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 395   = wceq 1540  wcel 2109  Vcvv 3450  {csn 4592  cop 4598  cmpt 5191   I cid 5535  cres 5643  cfv 6514  (class class class)co 7390  cmpo 7392  ωcom 7845  m cmap 8802  WUnicwun 10660  ndxcnx 17170  Basecbs 17186  SetCatcsetc 18044
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 2008  ax-8 2111  ax-9 2119  ax-10 2142  ax-11 2158  ax-12 2178  ax-ext 2702  ax-rep 5237  ax-sep 5254  ax-nul 5264  ax-pr 5390
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 2066  df-mo 2534  df-eu 2563  df-clab 2709  df-cleq 2722  df-clel 2804  df-nfc 2879  df-ne 2927  df-ral 3046  df-rex 3055  df-reu 3357  df-rab 3409  df-v 3452  df-sbc 3757  df-csb 3866  df-dif 3920  df-un 3922  df-in 3924  df-ss 3934  df-nul 4300  df-if 4492  df-sn 4593  df-pr 4595  df-op 4599  df-uni 4875  df-iun 4960  df-br 5111  df-opab 5173  df-mpt 5192  df-id 5536  df-xp 5647  df-rel 5648  df-cnv 5649  df-co 5650  df-dm 5651  df-rn 5652  df-res 5653  df-ima 5654  df-iota 6467  df-fun 6516  df-fn 6517  df-f 6518  df-f1 6519  df-fo 6520  df-f1o 6521  df-fv 6522  df-ov 7393  df-oprab 7394  df-mpo 7395
This theorem is referenced by:  funcsetcestrclem6  18128  funcsetcestrclem7  18129  funcsetcestrclem8  18130  funcsetcestrclem9  18131
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