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Theorem r1elssi 9210
 Description: The range of the 𝑅1 function is transitive. Lemma 2.10 of [Kunen] p. 97. One direction of r1elss 9211 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 5158 . . . 4 (∀𝑥 ∈ On Tr (𝑅1𝑥) → Tr 𝑥 ∈ On (𝑅1𝑥))
2 r1tr 9181 . . . . 5 Tr (𝑅1𝑥)
32a1i 11 . . . 4 (𝑥 ∈ On → Tr (𝑅1𝑥))
41, 3mprg 3140 . . 3 Tr 𝑥 ∈ On (𝑅1𝑥)
5 r1funlim 9171 . . . . . 6 (Fun 𝑅1 ∧ Lim dom 𝑅1)
65simpli 487 . . . . 5 Fun 𝑅1
7 funiunfv 6981 . . . . 5 (Fun 𝑅1 𝑥 ∈ On (𝑅1𝑥) = (𝑅1 “ On))
86, 7ax-mp 5 . . . 4 𝑥 ∈ On (𝑅1𝑥) = (𝑅1 “ On)
9 treq 5151 . . . 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 233 . 2 Tr (𝑅1 “ On)
12 trss 5154 . 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 209   = wceq 1538   ∈ wcel 2115   ⊆ wss 3910  ∪ cuni 4811  ∪ ciun 4892  Tr wtr 5145  dom cdm 5528   “ cima 5531  Oncon0 6164  Lim wlim 6165  Fun wfun 6322  ‘cfv 6328  𝑅1cr1 9167 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 1912  ax-6 1971  ax-7 2016  ax-8 2117  ax-9 2125  ax-10 2146  ax-11 2162  ax-12 2178  ax-ext 2793  ax-sep 5176  ax-nul 5183  ax-pow 5239  ax-pr 5303  ax-un 7436 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 2071  df-mo 2623  df-eu 2654  df-clab 2800  df-cleq 2814  df-clel 2892  df-nfc 2960  df-ne 3008  df-ral 3131  df-rex 3132  df-reu 3133  df-rab 3135  df-v 3473  df-sbc 3750  df-csb 3858  df-dif 3913  df-un 3915  df-in 3917  df-ss 3927  df-pss 3929  df-nul 4267  df-if 4441  df-pw 4514  df-sn 4541  df-pr 4543  df-tp 4545  df-op 4547  df-uni 4812  df-iun 4894  df-br 5040  df-opab 5102  df-mpt 5120  df-tr 5146  df-id 5433  df-eprel 5438  df-po 5447  df-so 5448  df-fr 5487  df-we 5489  df-xp 5534  df-rel 5535  df-cnv 5536  df-co 5537  df-dm 5538  df-rn 5539  df-res 5540  df-ima 5541  df-pred 6121  df-ord 6167  df-on 6168  df-lim 6169  df-suc 6170  df-iota 6287  df-fun 6330  df-fn 6331  df-f 6332  df-f1 6333  df-fo 6334  df-f1o 6335  df-fv 6336  df-om 7556  df-wrecs 7922  df-recs 7983  df-rdg 8021  df-r1 9169 This theorem is referenced by:  r1elss  9211  pwwf  9212  rankelb  9229  rankval3b  9231  r1pw  9250  rankuni2b  9258  tcwf  9288  tcrank  9289  hsmexlem4  9828  rankcf  10176  wfgru  10215  grur1  10219
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