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Theorem r1elssi 8612
Description: The range of the 𝑅1 function is transitive. Lemma 2.10 of [Kunen] p. 97. One direction of r1elss 8613 that doesn't need 𝐴 to be a set. (Contributed by Mario Carneiro, 22-Mar-2013.) (Revised by Mario Carneiro, 16-Nov-2014.)
Assertion
Ref Expression
r1elssi (𝐴 (𝑅1 “ On) → 𝐴 (𝑅1 “ On))

Proof of Theorem r1elssi
Dummy variable 𝑥 is distinct from all other variables.
StepHypRef Expression
1 triun 4726 . . . 4 (∀𝑥 ∈ On Tr (𝑅1𝑥) → Tr 𝑥 ∈ On (𝑅1𝑥))
2 r1tr 8583 . . . . 5 Tr (𝑅1𝑥)
32a1i 11 . . . 4 (𝑥 ∈ On → Tr (𝑅1𝑥))
41, 3mprg 2921 . . 3 Tr 𝑥 ∈ On (𝑅1𝑥)
5 r1funlim 8573 . . . . . 6 (Fun 𝑅1 ∧ Lim dom 𝑅1)
65simpli 474 . . . . 5 Fun 𝑅1
7 funiunfv 6460 . . . . 5 (Fun 𝑅1 𝑥 ∈ On (𝑅1𝑥) = (𝑅1 “ On))
86, 7ax-mp 5 . . . 4 𝑥 ∈ On (𝑅1𝑥) = (𝑅1 “ On)
9 treq 4718 . . . 4 ( 𝑥 ∈ On (𝑅1𝑥) = (𝑅1 “ On) → (Tr 𝑥 ∈ On (𝑅1𝑥) ↔ Tr (𝑅1 “ On)))
108, 9ax-mp 5 . . 3 (Tr 𝑥 ∈ On (𝑅1𝑥) ↔ Tr (𝑅1 “ On))
114, 10mpbi 220 . 2 Tr (𝑅1 “ On)
12 trss 4721 . 2 (Tr (𝑅1 “ On) → (𝐴 (𝑅1 “ On) → 𝐴 (𝑅1 “ On)))
1311, 12ax-mp 5 1 (𝐴 (𝑅1 “ On) → 𝐴 (𝑅1 “ On))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 196   = wceq 1480  wcel 1987  wss 3555   cuni 4402   ciun 4485  Tr wtr 4712  dom cdm 5074  cima 5077  Oncon0 5682  Lim wlim 5683  Fun wfun 5841  cfv 5847  𝑅1cr1 8569
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1719  ax-4 1734  ax-5 1836  ax-6 1885  ax-7 1932  ax-8 1989  ax-9 1996  ax-10 2016  ax-11 2031  ax-12 2044  ax-13 2245  ax-ext 2601  ax-sep 4741  ax-nul 4749  ax-pow 4803  ax-pr 4867  ax-un 6902
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1037  df-3an 1038  df-tru 1483  df-ex 1702  df-nf 1707  df-sb 1878  df-eu 2473  df-mo 2474  df-clab 2608  df-cleq 2614  df-clel 2617  df-nfc 2750  df-ne 2791  df-ral 2912  df-rex 2913  df-reu 2914  df-rab 2916  df-v 3188  df-sbc 3418  df-csb 3515  df-dif 3558  df-un 3560  df-in 3562  df-ss 3569  df-pss 3571  df-nul 3892  df-if 4059  df-pw 4132  df-sn 4149  df-pr 4151  df-tp 4153  df-op 4155  df-uni 4403  df-iun 4487  df-br 4614  df-opab 4674  df-mpt 4675  df-tr 4713  df-eprel 4985  df-id 4989  df-po 4995  df-so 4996  df-fr 5033  df-we 5035  df-xp 5080  df-rel 5081  df-cnv 5082  df-co 5083  df-dm 5084  df-rn 5085  df-res 5086  df-ima 5087  df-pred 5639  df-ord 5685  df-on 5686  df-lim 5687  df-suc 5688  df-iota 5810  df-fun 5849  df-fn 5850  df-f 5851  df-f1 5852  df-fo 5853  df-f1o 5854  df-fv 5855  df-om 7013  df-wrecs 7352  df-recs 7413  df-rdg 7451  df-r1 8571
This theorem is referenced by:  r1elss  8613  pwwf  8614  rankelb  8631  rankval3b  8633  r1pw  8652  rankuni2b  8660  tcwf  8690  tcrank  8691  hsmexlem4  9195  rankcf  9543  wfgru  9582  grur1  9586
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