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Theorem r1ord 9201
Description: Ordering relation for the cumulative hierarchy of sets. Part of Proposition 9.10(2) of [TakeutiZaring] p. 77. (Contributed by NM, 8-Sep-2003.) (Revised by Mario Carneiro, 16-Nov-2014.)
Assertion
Ref Expression
r1ord (𝐵 ∈ On → (𝐴𝐵 → (𝑅1𝐴) ∈ (𝑅1𝐵)))

Proof of Theorem r1ord
StepHypRef Expression
1 r1fnon 9188 . . . 4 𝑅1 Fn On
2 fndm 6448 . . . 4 (𝑅1 Fn On → dom 𝑅1 = On)
31, 2ax-mp 5 . . 3 dom 𝑅1 = On
43eleq2i 2902 . 2 (𝐵 ∈ dom 𝑅1𝐵 ∈ On)
5 r1ordg 9199 . 2 (𝐵 ∈ dom 𝑅1 → (𝐴𝐵 → (𝑅1𝐴) ∈ (𝑅1𝐵)))
64, 5sylbir 237 1 (𝐵 ∈ On → (𝐴𝐵 → (𝑅1𝐴) ∈ (𝑅1𝐵)))
Colors of variables: wff setvar class
Syntax hints:  wi 4   = wceq 1530  wcel 2107  dom cdm 5548  Oncon0 6184   Fn wfn 6343  cfv 6348  𝑅1cr1 9183
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1789  ax-4 1803  ax-5 1904  ax-6 1963  ax-7 2008  ax-8 2109  ax-9 2117  ax-10 2138  ax-11 2153  ax-12 2169  ax-ext 2791  ax-rep 5181  ax-sep 5194  ax-nul 5201  ax-pow 5257  ax-pr 5320  ax-un 7453
This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3or 1082  df-3an 1083  df-tru 1533  df-ex 1774  df-nf 1778  df-sb 2063  df-mo 2616  df-eu 2648  df-clab 2798  df-cleq 2812  df-clel 2891  df-nfc 2961  df-ne 3015  df-ral 3141  df-rex 3142  df-reu 3143  df-rab 3145  df-v 3495  df-sbc 3771  df-csb 3882  df-dif 3937  df-un 3939  df-in 3941  df-ss 3950  df-pss 3952  df-nul 4290  df-if 4466  df-pw 4539  df-sn 4560  df-pr 4562  df-tp 4564  df-op 4566  df-uni 4831  df-iun 4912  df-br 5058  df-opab 5120  df-mpt 5138  df-tr 5164  df-id 5453  df-eprel 5458  df-po 5467  df-so 5468  df-fr 5507  df-we 5509  df-xp 5554  df-rel 5555  df-cnv 5556  df-co 5557  df-dm 5558  df-rn 5559  df-res 5560  df-ima 5561  df-pred 6141  df-ord 6187  df-on 6188  df-lim 6189  df-suc 6190  df-iota 6307  df-fun 6350  df-fn 6351  df-f 6352  df-f1 6353  df-fo 6354  df-f1o 6355  df-fv 6356  df-om 7573  df-wrecs 7939  df-recs 8000  df-rdg 8038  df-r1 9185
This theorem is referenced by:  r1ord2  9202  r1wunlim  10151
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