Theorem f1orescnv 5588

Description: The converse of a one-to-one-onto restricted function. (Contributed by Paul Chapman, 21-Apr-2008.)

Assertion

Ref	Expression
f1orescnv	|- ( ( Fun `' F /\ ( F |` R ) : R -1-1-onto-> P ) -> ( `' F |` P ) : P -1-1-onto-> R )

Proof of Theorem f1orescnv

Step	Hyp	Ref	Expression
1		f1ocnv 5585	. . 3 |- ( ( F |` R ) : R -1-1-onto-> P -> `' ( F |` R ) : P -1-1-onto-> R )
2	1	adantl 277	. 2 |- ( ( Fun `' F /\ ( F |` R ) : R -1-1-onto-> P ) -> `' ( F |` R ) : P -1-1-onto-> R )
3		funcnvres 5394	. . . 4 |- ( Fun `' F -> `' ( F |` R ) = ( `' F |` ( F " R ) ) )
4		df-ima 4732	. . . . . 6 |- ( F " R ) = ran ( F |` R )
5		dff1o5 5581	. . . . . . 7 |- ( ( F |` R ) : R -1-1-onto-> P <-> ( ( F |` R ) : R -1-1-> P /\ ran ( F |` R ) = P ) )
6	5	simprbi 275	. . . . . 6 |- ( ( F |` R ) : R -1-1-onto-> P -> ran ( F |` R ) = P )
7	4, 6	eqtrid 2274	. . . . 5 |- ( ( F |` R ) : R -1-1-onto-> P -> ( F " R ) = P )
8	7	reseq2d 5005	. . . 4 |- ( ( F |` R ) : R -1-1-onto-> P -> ( `' F |` ( F " R ) ) = ( `' F |` P ) )
9	3, 8	sylan9eq 2282	. . 3 |- ( ( Fun `' F /\ ( F |` R ) : R -1-1-onto-> P ) -> `' ( F |` R ) = ( `' F |` P ) )
10		f1oeq1 5560	. . 3 |- ( `' ( F |` R ) = ( `' F |` P ) -> ( `' ( F |` R ) : P -1-1-onto-> R <-> ( `' F |` P ) : P -1-1-onto-> R ) )
11	9, 10	syl 14	. 2 |- ( ( Fun `' F /\ ( F |` R ) : R -1-1-onto-> P ) -> ( `' ( F |` R ) : P -1-1-onto-> R <-> ( `' F |` P ) : P -1-1-onto-> R ) )
12	2, 11	mpbid 147	1 |- ( ( Fun `' F /\ ( F |` R ) : R -1-1-onto-> P ) -> ( `' F |` P ) : P -1-1-onto-> R )

Syntax hints:   -> wi 4   /\ wa 104   <-> wb 105   = wceq 1395   `'ccnv 4718   ran crn 4720   |` cres 4721   "cima 4722   Fun wfun 5312   -1-1->wf1 5315   -1-1-onto->wf1o 5317

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-14 2203  ax-ext 2211  ax-sep 4202  ax-pow 4258  ax-pr 4293

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 2801  df-un 3201  df-in 3203  df-ss 3210  df-pw 3651  df-sn 3672  df-pr 3673  df-op 3675  df-br 4084  df-opab 4146  df-id 4384  df-xp 4725  df-rel 4726  df-cnv 4727  df-co 4728  df-dm 4729  df-rn 4730  df-res 4731  df-ima 4732  df-fun 5320  df-fn 5321  df-f 5322  df-f1 5323  df-fo 5324  df-f1o 5325

This theorem is referenced by:  f1oresrab  5800