Theorem ishmeo 15405

Description: The predicate F is a homeomorphism between topology J and topology K. Proposition of [BourbakiTop1] p. I.2. (Contributed by FL, 14-Feb-2007.) (Revised by Mario Carneiro, 22-Aug-2015.)

Assertion

Ref	Expression
ishmeo	|- ( F e. ( J Homeo K ) <-> ( F e. ( J Cn K ) /\ `' F e. ( K Cn J ) ) )

Proof of Theorem ishmeo

Dummy variables f j k y are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		df-hmeo 15402	. . 3 |- Homeo = ( j e. Top , k e. Top |-> { f e. ( j Cn k ) | `' f e. ( k Cn j ) } )
2	1	elmpocl 6284	. 2 |- ( F e. ( J Homeo K ) -> ( J e. Top /\ K e. Top ) )
3		df-cn 15289	. . . 4 |- Cn = ( j e. Top , k e. Top |-> { f e. ( U. k ^m U. j ) | A. y e. k ( `' f " y ) e. j } )
4	3	elmpocl 6284	. . 3 |- ( F e. ( J Cn K ) -> ( J e. Top /\ K e. Top ) )
5	4	adantr 276	. 2 |- ( ( F e. ( J Cn K ) /\ `' F e. ( K Cn J ) ) -> ( J e. Top /\ K e. Top ) )
6		hmeofvalg 15404	. . . 4 |- ( ( J e. Top /\ K e. Top ) -> ( J Homeo K ) = { f e. ( J Cn K ) | `' f e. ( K Cn J ) } )
7	6	eleq2d 2308	. . 3 |- ( ( J e. Top /\ K e. Top ) -> ( F e. ( J Homeo K ) <-> F e. { f e. ( J Cn K ) | `' f e. ( K Cn J ) } ) )
8		cnveq 4954	. . . . 5 |- ( f = F -> `' f = `' F )
9	8	eleq1d 2307	. . . 4 |- ( f = F -> ( `' f e. ( K Cn J ) <-> `' F e. ( K Cn J ) ) )
10	9	elrab 2982	. . 3 |- ( F e. { f e. ( J Cn K ) | `' f e. ( K Cn J ) } <-> ( F e. ( J Cn K ) /\ `' F e. ( K Cn J ) ) )
11	7, 10	bitrdi 196	. 2 |- ( ( J e. Top /\ K e. Top ) -> ( F e. ( J Homeo K ) <-> ( F e. ( J Cn K ) /\ `' F e. ( K Cn J ) ) ) )
12	2, 5, 11	pm5.21nii 716	1 |- ( F e. ( J Homeo K ) <-> ( F e. ( J Cn K ) /\ `' F e. ( K Cn J ) ) )

This proof depends on syntax axioms:   /\ wa 104   <-> wb 105   = wceq 1402   e. wcel 2209   A.wral 2528   {crab 2532   U.cuni 3935   `'ccnv 4773   "cima 4777  (class class class)co 6085   ^m cmap 6922   Topctop 15098   Cn ccn 15286   Homeochmeo 15401

This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 623  ax-in2 624  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 4249  ax-pow 4311  ax-pr 4346  ax-un 4578  ax-setind 4684

This proof depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  df-fal 1408  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-ne 2421  df-ral 2533  df-rex 2534  df-rab 2537  df-v 2823  df-sbc 3052  df-csb 3148  df-dif 3222  df-un 3224  df-in 3226  df-ss 3233  df-pw 3690  df-sn 3715  df-pr 3716  df-op 3718  df-uni 3936  df-iun 4014  df-br 4131  df-opab 4193  df-mpt 4194  df-id 4438  df-xp 4780  df-rel 4781  df-cnv 4782  df-co 4783  df-dm 4784  df-rn 4785  df-res 4786  df-ima 4787  df-iota 5337  df-fun 5379  df-fn 5380  df-f 5381  df-fv 5385  df-ov 6088  df-oprab 6089  df-mpo 6090  df-1st 6374  df-2nd 6375  df-map 6924  df-top 15099  df-topon 15112  df-cn 15289  df-hmeo 15402

This theorem is used by:  hmeocn  15406  hmeocnvcn  15407  hmeocnv  15408  hmeores  15416  hmeoco  15417  idhmeo  15418  txhmeo  15420  txswaphmeo  15422  cnrehmeocntop  15711