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Theorem onprcr 36531
Description: Relative version of onprc 7792. (Contributed by Adrian Ducourtial, 15-Oct-2026.)
Hypotheses
Ref Expression
onprcr.1 𝐴 = {𝑥 ∈ 𝑉 ∣ Ord 𝑥}
onprcr.2 Tr 𝐴
Assertion
Ref Expression
onprcr ¬ 𝐴 ∈ 𝑉
Distinct variable groups:   𝑥,𝐴   𝑥,𝑉

Proof of Theorem onprcr
StepHypRef Expression
1 onprcr.2 . . . 4 Tr 𝐴
2 rabssab 4010 . . . . . 6 {𝑥 ∈ 𝑉 ∣ Ord 𝑥} ⊆ {𝑥 ∣ Ord 𝑥}
3 onprcr.1 . . . . . 6 𝐴 = {𝑥 ∈ 𝑉 ∣ Ord 𝑥}
4 df-on 6366 . . . . . 6 On = {𝑥 ∣ Ord 𝑥}
52, 3, 43sstr4i 3959 . . . . 5 𝐴 ⊆ On
6 epweon 7789 . . . . 5 E We On
7 wess 5636 . . . . 5 (𝐴 ⊆ On → ( E We On → E We 𝐴))
85, 6, 7mp2 9 . . . 4 E We 𝐴
9 df-ord 6365 . . . 4 (Ord 𝐴 ↔ (Tr 𝐴 ∧ E We 𝐴))
101, 8, 9mpbir2an 724 . . 3 Ord 𝐴
11 ordirr 6380 . . 3 (Ord 𝐴 → ¬ 𝐴 ∈ 𝐴)
1210, 11ax-mp 5 . 2 ¬ 𝐴 ∈ 𝐴
13 ordeq 6369 . . . . 5 (𝑥 = 𝐴 → (Ord 𝑥 ↔ Ord 𝐴))
1413elrab3 3645 . . . 4 (𝐴 ∈ 𝑉 → (𝐴 ∈ {𝑥 ∈ 𝑉 ∣ Ord 𝑥} ↔ Ord 𝐴))
1510, 14mpbiri 261 . . 3 (𝐴 ∈ 𝑉 → 𝐴 ∈ {𝑥 ∈ 𝑉 ∣ Ord 𝑥})
1615, 3eleqtrrdi 2871 . 2 (𝐴 ∈ 𝑉 → 𝐴 ∈ 𝐴)
1712, 16mto 200 1 ¬ 𝐴 ∈ 𝑉
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  ¬ wn 3   = wceq 1569   ∈ wcel 2144  {cab 2738  {crab 3412   ⊆ wss 3895  Tr wtr 5211   E cep 5549   We wwe 5602  Ord word 6361  Oncon0 6362
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1827  ax-4 1841  ax-5 1942  ax-6 1999  ax-7 2040  ax-8 2146  ax-9 2154  ax-ext 2732  ax-sep 5248  ax-pr 5390
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3or 1104  df-3an 1105  df-tru 1572  df-fal 1582  df-ex 1812  df-sb 2099  df-clab 2739  df-cleq 2752  df-clel 2835  df-ne 2956  df-ral 3077  df-rex 3087  df-rab 3413  df-v 3452  df-ss 3896  df-pss 4014  df-dif 4047  df-in 4091  df-un 4151  df-nul 4279  df-if 4482  df-pw 4558  df-sn 4584  df-pr 4586  df-op 4590  df-uni 4867  df-br 5103  df-opab 5167  df-tr 5212  df-eprel 5550  df-po 5558  df-so 5559  df-fr 5603  df-we 5605  df-ord 6365  df-on 6366
This theorem is used by:  onprcALT  36532
  Copyright terms: Public domain W3C validator