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Theorem cnvct 7087
Description: If a set is dominated by ω, so is its converse. (Contributed by Thierry Arnoux, 29-Dec-2016.)
Assertion
Ref Expression
cnvct (𝐴 ≼ ω → 𝐴 ≼ ω)

Proof of Theorem cnvct
StepHypRef Expression
1 relcnv 5160 . . . 4 Rel 𝐴
2 ctex 7027 . . . . 5 (𝐴 ≼ ω → 𝐴 ∈ V)
3 cnvexg 5320 . . . . 5 (𝐴 ∈ V → 𝐴 ∈ V)
42, 3syl 14 . . . 4 (𝐴 ≼ ω → 𝐴 ∈ V)
5 cnven 7086 . . . 4 ((Rel 𝐴𝐴 ∈ V) → 𝐴𝐴)
61, 4, 5sylancr 418 . . 3 (𝐴 ≼ ω → 𝐴𝐴)
7 cnvcnvss 5237 . . . 4 𝐴𝐴
8 ssdomg 7055 . . . 4 (𝐴 ∈ V → (𝐴𝐴𝐴𝐴))
92, 7, 8mpisyl 1496 . . 3 (𝐴 ≼ ω → 𝐴𝐴)
10 endomtr 7067 . . 3 ((𝐴𝐴𝐴𝐴) → 𝐴𝐴)
116, 9, 10syl2anc 415 . 2 (𝐴 ≼ ω → 𝐴𝐴)
12 domtr 7062 . 2 ((𝐴𝐴𝐴 ≼ ω) → 𝐴 ≼ ω)
1311, 12mpancom 426 1 (𝐴 ≼ ω → 𝐴 ≼ ω)
Colors of variables: wff set class
Syntax hints:  wi 4  wcel 2209  Vcvv 2821  wss 3220   class class class wbr 4125  ωcom 4732  ccnv 4768  Rel wrel 4774  cen 7010  cdom 7011
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-sep 4244  ax-pow 4306  ax-pr 4341  ax-un 4573
This theorem depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  df-nf 1514  df-sb 1816  df-eu 2089  df-mo 2090  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ral 2533  df-rex 2534  df-v 2823  df-sbc 3052  df-un 3224  df-in 3226  df-ss 3233  df-pw 3687  df-sn 3711  df-pr 3712  df-op 3714  df-uni 3931  df-br 4126  df-opab 4188  df-mpt 4189  df-id 4433  df-xp 4775  df-rel 4776  df-cnv 4777  df-co 4778  df-dm 4779  df-rn 4780  df-res 4781  df-ima 4782  df-iota 5332  df-fun 5374  df-fn 5375  df-f 5376  df-f1 5377  df-fo 5378  df-f1o 5379  df-fv 5380  df-1st 6364  df-2nd 6365  df-en 7013  df-dom 7014
This theorem is referenced by: (None)
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