Theorem cnvct 7027

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 5121	. . . 4 |- Rel `' A
2		ctex 6967	. . . . 5 |- ( A ~<_ om -> A e. _V )
3		cnvexg 5281	. . . . 5 |- ( A e. _V -> `' A e. _V )
4	2, 3	syl 14	. . . 4 |- ( A ~<_ om -> `' A e. _V )
5		cnven 7026	. . . 4 |- ( ( Rel `' A /\ `' A e. _V ) -> `' A ~~ `' `' A )
6	1, 4, 5	sylancr 414	. . 3 |- ( A ~<_ om -> `' A ~~ `' `' A )
7		cnvcnvss 5198	. . . 4 |- `' `' A C_ A
8		ssdomg 6995	. . . 4 |- ( A e. _V -> ( `' `' A C_ A -> `' `' A ~<_ A ) )
9	2, 7, 8	mpisyl 1492	. . 3 |- ( A ~<_ om -> `' `' A ~<_ A )
10		endomtr 7007	. . 3 |- ( ( `' A ~~ `' `' A /\ `' `' A ~<_ A ) -> `' A ~<_ A )
11	6, 9, 10	syl2anc 411	. 2 |- ( A ~<_ om -> `' A ~<_ A )
12		domtr 7002	. 2 |- ( ( `' A ~<_ A /\ A ~<_ om ) -> `' A ~<_ om )
13	11, 12	mpancom 422	1 |- ( A ~<_ om -> `' A ~<_ om )

Syntax hints:   -> wi 4   e. wcel 2202   _Vcvv 2803   C_ wss 3201   class class class wbr 4093   omcom 4694   `'ccnv 4730   Rel wrel 4736   ~~ cen 6950   ~<_ cdom 6951

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 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-13 2204  ax-14 2205  ax-ext 2213  ax-sep 4212  ax-pow 4270  ax-pr 4305  ax-un 4536

This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-nf 1510  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2364  df-ral 2516  df-rex 2517  df-v 2805  df-sbc 3033  df-un 3205  df-in 3207  df-ss 3214  df-pw 3658  df-sn 3679  df-pr 3680  df-op 3682  df-uni 3899  df-br 4094  df-opab 4156  df-mpt 4157  df-id 4396  df-xp 4737  df-rel 4738  df-cnv 4739  df-co 4740  df-dm 4741  df-rn 4742  df-res 4743  df-ima 4744  df-iota 5293  df-fun 5335  df-fn 5336  df-f 5337  df-f1 5338  df-fo 5339  df-f1o 5340  df-fv 5341  df-1st 6312  df-2nd 6313  df-en 6953  df-dom 6954

This theorem is referenced by: (None)