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Theorem onprcr 36631
Description: Relative version of onprc 7816. (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 4013 . . . . . 6 {𝑥 ∈ 𝑉 ∣ Ord 𝑥} ⊆ {𝑥 ∣ Ord 𝑥}
3 onprcr.1 . . . . . 6 𝐴 = {𝑥 ∈ 𝑉 ∣ Ord 𝑥}
4 df-on 6384 . . . . . 6 On = {𝑥 ∣ Ord 𝑥}
52, 3, 43sstr4i 3964 . . . . 5 𝐴 ⊆ On
6 epweon 7813 . . . . 5 E We On
7 wess 5641 . . . . 5 (𝐴 ⊆ On → ( E We On → E We 𝐴))
85, 6, 7mp2 9 . . . 4 E We 𝐴
9 df-ord 6383 . . . 4 (Ord 𝐴 ↔ (Tr 𝐴 ∧ E We 𝐴))
101, 8, 9mpbir2an 724 . . 3 Ord 𝐴
11 ordirr 6398 . . 3 (Ord 𝐴 → ¬ 𝐴 ∈ 𝐴)
1210, 11ax-mp 5 . 2 ¬ 𝐴 ∈ 𝐴
13 ordeq 6387 . . . . 5 (𝑥 = 𝐴 → (Ord 𝑥 ↔ Ord 𝐴))
1413elrab3 3649 . . . 4 (𝐴 ∈ 𝑉 → (𝐴 ∈ {𝑥 ∈ 𝑉 ∣ Ord 𝑥} ↔ Ord 𝐴))
1510, 14mpbiri 261 . . 3 (𝐴 ∈ 𝑉 → 𝐴 ∈ {𝑥 ∈ 𝑉 ∣ Ord 𝑥})
1615, 3eleqtrrdi 2875 . 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 1570   ∈ wcel 2147  {cab 2741  {crab 3416   ⊆ wss 3900  Tr wtr 5215   E cep 5554   We wwe 5607  Ord word 6379  Oncon0 6380
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 1945  ax-6 2002  ax-7 2043  ax-8 2149  ax-9 2157  ax-ext 2735  ax-sep 5252  ax-pr 5395
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3or 1104  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-sb 2102  df-clab 2742  df-cleq 2755  df-clel 2839  df-ne 2960  df-ral 3081  df-rex 3091  df-rab 3417  df-v 3456  df-ss 3901  df-pss 4017  df-dif 4050  df-in 4094  df-un 4154  df-nul 4282  df-if 4486  df-pw 4562  df-sn 4589  df-pr 4591  df-op 4839  df-uni 4871  df-br 5107  df-opab 5171  df-tr 5216  df-eprel 5555  df-po 5563  df-so 5564  df-fr 5608  df-we 5610  df-ord 6383  df-on 6384
This theorem is used by:  onprcALT  36632
  Copyright terms: Public domain W3C validator