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Theorem ordtypelem2 8971
Description: Lemma for ordtype 8984. (Contributed by Mario Carneiro, 24-Jun-2015.)
Hypotheses
Ref Expression
ordtypelem.1 𝐹 = recs(𝐺)
ordtypelem.2 𝐶 = {𝑤𝐴 ∣ ∀𝑗 ∈ ran 𝑗𝑅𝑤}
ordtypelem.3 𝐺 = ( ∈ V ↦ (𝑣𝐶𝑢𝐶 ¬ 𝑢𝑅𝑣))
ordtypelem.5 𝑇 = {𝑥 ∈ On ∣ ∃𝑡𝐴𝑧 ∈ (𝐹𝑥)𝑧𝑅𝑡}
ordtypelem.6 𝑂 = OrdIso(𝑅, 𝐴)
ordtypelem.7 (𝜑𝑅 We 𝐴)
ordtypelem.8 (𝜑𝑅 Se 𝐴)
Assertion
Ref Expression
ordtypelem2 (𝜑 → Ord 𝑇)
Distinct variable groups:   𝑣,𝑢,𝐶   ,𝑗,𝑡,𝑢,𝑣,𝑤,𝑥,𝑧,𝑅   𝐴,,𝑗,𝑡,𝑢,𝑣,𝑤,𝑥,𝑧   𝑡,𝑂,𝑢,𝑣,𝑥   𝜑,𝑡,𝑥   ,𝐹,𝑗,𝑡,𝑢,𝑣,𝑤,𝑥,𝑧
Allowed substitution hints:   𝜑(𝑧,𝑤,𝑣,𝑢,,𝑗)   𝐶(𝑥,𝑧,𝑤,𝑡,,𝑗)   𝑇(𝑥,𝑧,𝑤,𝑣,𝑢,𝑡,,𝑗)   𝐺(𝑥,𝑧,𝑤,𝑣,𝑢,𝑡,,𝑗)   𝑂(𝑧,𝑤,,𝑗)

Proof of Theorem ordtypelem2
Dummy variable 𝑎 is distinct from all other variables.
StepHypRef Expression
1 ordtypelem.5 . . . . . . . . . 10 𝑇 = {𝑥 ∈ On ∣ ∃𝑡𝐴𝑧 ∈ (𝐹𝑥)𝑧𝑅𝑡}
21ssrab3 4032 . . . . . . . . 9 𝑇 ⊆ On
32a1i 11 . . . . . . . 8 (𝜑𝑇 ⊆ On)
43sselda 3942 . . . . . . 7 ((𝜑𝑎𝑇) → 𝑎 ∈ On)
5 onss 7490 . . . . . . 7 (𝑎 ∈ On → 𝑎 ⊆ On)
64, 5syl 17 . . . . . 6 ((𝜑𝑎𝑇) → 𝑎 ⊆ On)
7 eloni 6179 . . . . . . . 8 (𝑎 ∈ On → Ord 𝑎)
84, 7syl 17 . . . . . . 7 ((𝜑𝑎𝑇) → Ord 𝑎)
9 imaeq2 5903 . . . . . . . . . . . 12 (𝑥 = 𝑎 → (𝐹𝑥) = (𝐹𝑎))
109raleqdv 3392 . . . . . . . . . . 11 (𝑥 = 𝑎 → (∀𝑧 ∈ (𝐹𝑥)𝑧𝑅𝑡 ↔ ∀𝑧 ∈ (𝐹𝑎)𝑧𝑅𝑡))
1110rexbidv 3283 . . . . . . . . . 10 (𝑥 = 𝑎 → (∃𝑡𝐴𝑧 ∈ (𝐹𝑥)𝑧𝑅𝑡 ↔ ∃𝑡𝐴𝑧 ∈ (𝐹𝑎)𝑧𝑅𝑡))
1211, 1elrab2 3658 . . . . . . . . 9 (𝑎𝑇 ↔ (𝑎 ∈ On ∧ ∃𝑡𝐴𝑧 ∈ (𝐹𝑎)𝑧𝑅𝑡))
1312simprbi 500 . . . . . . . 8 (𝑎𝑇 → ∃𝑡𝐴𝑧 ∈ (𝐹𝑎)𝑧𝑅𝑡)
1413adantl 485 . . . . . . 7 ((𝜑𝑎𝑇) → ∃𝑡𝐴𝑧 ∈ (𝐹𝑎)𝑧𝑅𝑡)
15 ordelss 6185 . . . . . . . . 9 ((Ord 𝑎𝑥𝑎) → 𝑥𝑎)
16 imass2 5943 . . . . . . . . 9 (𝑥𝑎 → (𝐹𝑥) ⊆ (𝐹𝑎))
17 ssralv 4008 . . . . . . . . . 10 ((𝐹𝑥) ⊆ (𝐹𝑎) → (∀𝑧 ∈ (𝐹𝑎)𝑧𝑅𝑡 → ∀𝑧 ∈ (𝐹𝑥)𝑧𝑅𝑡))
1817reximdv 3259 . . . . . . . . 9 ((𝐹𝑥) ⊆ (𝐹𝑎) → (∃𝑡𝐴𝑧 ∈ (𝐹𝑎)𝑧𝑅𝑡 → ∃𝑡𝐴𝑧 ∈ (𝐹𝑥)𝑧𝑅𝑡))
1915, 16, 183syl 18 . . . . . . . 8 ((Ord 𝑎𝑥𝑎) → (∃𝑡𝐴𝑧 ∈ (𝐹𝑎)𝑧𝑅𝑡 → ∃𝑡𝐴𝑧 ∈ (𝐹𝑥)𝑧𝑅𝑡))
2019ralrimdva 3179 . . . . . . 7 (Ord 𝑎 → (∃𝑡𝐴𝑧 ∈ (𝐹𝑎)𝑧𝑅𝑡 → ∀𝑥𝑎𝑡𝐴𝑧 ∈ (𝐹𝑥)𝑧𝑅𝑡))
218, 14, 20sylc 65 . . . . . 6 ((𝜑𝑎𝑇) → ∀𝑥𝑎𝑡𝐴𝑧 ∈ (𝐹𝑥)𝑧𝑅𝑡)
22 ssrab 4024 . . . . . 6 (𝑎 ⊆ {𝑥 ∈ On ∣ ∃𝑡𝐴𝑧 ∈ (𝐹𝑥)𝑧𝑅𝑡} ↔ (𝑎 ⊆ On ∧ ∀𝑥𝑎𝑡𝐴𝑧 ∈ (𝐹𝑥)𝑧𝑅𝑡))
236, 21, 22sylanbrc 586 . . . . 5 ((𝜑𝑎𝑇) → 𝑎 ⊆ {𝑥 ∈ On ∣ ∃𝑡𝐴𝑧 ∈ (𝐹𝑥)𝑧𝑅𝑡})
2423, 1sseqtrrdi 3993 . . . 4 ((𝜑𝑎𝑇) → 𝑎𝑇)
2524ralrimiva 3174 . . 3 (𝜑 → ∀𝑎𝑇 𝑎𝑇)
26 dftr3 5152 . . 3 (Tr 𝑇 ↔ ∀𝑎𝑇 𝑎𝑇)
2725, 26sylibr 237 . 2 (𝜑 → Tr 𝑇)
28 ordon 7483 . . 3 Ord On
29 trssord 6186 . . 3 ((Tr 𝑇𝑇 ⊆ On ∧ Ord On) → Ord 𝑇)
302, 28, 29mp3an23 1450 . 2 (Tr 𝑇 → Ord 𝑇)
3127, 30syl 17 1 (𝜑 → Ord 𝑇)
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wa 399   = wceq 1538  wcel 2114  wral 3130  wrex 3131  {crab 3134  Vcvv 3469  wss 3908   class class class wbr 5042  cmpt 5122  Tr wtr 5148   Se wse 5489   We wwe 5490  ran crn 5533  cima 5535  Ord word 6168  Oncon0 6169  crio 7097  recscrecs 7994  OrdIsocoi 8961
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 1911  ax-6 1970  ax-7 2015  ax-8 2116  ax-9 2124  ax-10 2145  ax-11 2161  ax-12 2178  ax-ext 2794  ax-sep 5179  ax-nul 5186  ax-pr 5307  ax-un 7446
This theorem depends on definitions:  df-bi 210  df-an 400  df-or 845  df-3or 1085  df-3an 1086  df-tru 1541  df-ex 1782  df-nf 1786  df-sb 2070  df-mo 2622  df-eu 2653  df-clab 2801  df-cleq 2815  df-clel 2894  df-nfc 2962  df-ne 3012  df-ral 3135  df-rex 3136  df-rab 3139  df-v 3471  df-sbc 3748  df-dif 3911  df-un 3913  df-in 3915  df-ss 3925  df-pss 3927  df-nul 4266  df-if 4440  df-sn 4540  df-pr 4542  df-tp 4544  df-op 4546  df-uni 4814  df-br 5043  df-opab 5105  df-tr 5149  df-eprel 5442  df-po 5451  df-so 5452  df-fr 5491  df-we 5493  df-xp 5538  df-cnv 5540  df-dm 5542  df-rn 5543  df-res 5544  df-ima 5545  df-ord 6172  df-on 6173
This theorem is referenced by:  ordtypelem5  8974  ordtypelem6  8975  ordtypelem7  8976  ordtypelem8  8977  ordtypelem9  8978
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