Theorem cnvct 6979

Description: If a set is dominated by om, so is its converse. (Contributed by Thierry Arnoux, 29-Dec-2016.)

Assertion

Ref	Expression
cnvct	|- ( A ~<_ om -> `' A ~<_ om )

Proof of Theorem cnvct

Step	Hyp	Ref	Expression
1		relcnv 5112	. . . 4 |- Rel `' A
2		ctex 6919	. . . . 5 |- ( A ~<_ om -> A e. _V )
3		cnvexg 5272	. . . . 5 |- ( A e. _V -> `' A e. _V )
4	2, 3	syl 14	. . . 4 |- ( A ~<_ om -> `' A e. _V )
5		cnven 6978	. . . 4 |- ( ( Rel `' A /\ `' A e. _V ) -> `' A ~~ `' `' A )
6	1, 4, 5	sylancr 414	. . 3 |- ( A ~<_ om -> `' A ~~ `' `' A )
7		cnvcnvss 5189	. . . 4 |- `' `' A C_ A
8		ssdomg 6947	. . . 4 |- ( A e. _V -> ( `' `' A C_ A -> `' `' A ~<_ A ) )
9	2, 7, 8	mpisyl 1489	. . 3 |- ( A ~<_ om -> `' `' A ~<_ A )
10		endomtr 6959	. . 3 |- ( ( `' A ~~ `' `' A /\ `' `' A ~<_ A ) -> `' A ~<_ A )
11	6, 9, 10	syl2anc 411	. 2 |- ( A ~<_ om -> `' A ~<_ A )
12		domtr 6954	. 2 |- ( ( `' A ~<_ A /\ A ~<_ om ) -> `' A ~<_ om )
13	11, 12	mpancom 422	1 |- ( A ~<_ om -> `' A ~<_ om )

Syntax hints:   -> wi 4   e. wcel 2200   _Vcvv 2800   C_ wss 3198   class class class wbr 4086   omcom 4686   `'ccnv 4722   Rel wrel 4728   ~~ cen 6902   ~<_ cdom 6903

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 714  ax-5 1493  ax-7 1494  ax-gen 1495  ax-ie1 1539  ax-ie2 1540  ax-8 1550  ax-10 1551  ax-11 1552  ax-i12 1553  ax-bndl 1555  ax-4 1556  ax-17 1572  ax-i9 1576  ax-ial 1580  ax-i5r 1581  ax-13 2202  ax-14 2203  ax-ext 2211  ax-sep 4205  ax-pow 4262  ax-pr 4297  ax-un 4528

This theorem depends on definitions:  df-bi 117  df-3an 1004  df-tru 1398  df-nf 1507  df-sb 1809  df-eu 2080  df-mo 2081  df-clab 2216  df-cleq 2222  df-clel 2225  df-nfc 2361  df-ral 2513  df-rex 2514  df-v 2802  df-sbc 3030  df-un 3202  df-in 3204  df-ss 3211  df-pw 3652  df-sn 3673  df-pr 3674  df-op 3676  df-uni 3892  df-br 4087  df-opab 4149  df-mpt 4150  df-id 4388  df-xp 4729  df-rel 4730  df-cnv 4731  df-co 4732  df-dm 4733  df-rn 4734  df-res 4735  df-ima 4736  df-iota 5284  df-fun 5326  df-fn 5327  df-f 5328  df-f1 5329  df-fo 5330  df-f1o 5331  df-fv 5332  df-1st 6298  df-2nd 6299  df-en 6905  df-dom 6906

This theorem is referenced by: (None)