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Theorem hmeocnvb 15129
Description: The converse of a homeomorphism is a homeomorphism. (Contributed by FL, 5-Mar-2007.) (Revised by Mario Carneiro, 23-Aug-2015.)
Assertion
Ref Expression
hmeocnvb  |-  ( Rel 
F  ->  ( `' F  e.  ( J Homeo K )  <->  F  e.  ( K Homeo J ) ) )

Proof of Theorem hmeocnvb
StepHypRef Expression
1 hmeocnv 15118 . . 3  |-  ( `' F  e.  ( J
Homeo K )  ->  `' `' F  e.  ( K Homeo J ) )
2 dfrel2 5194 . . . 4  |-  ( Rel 
F  <->  `' `' F  =  F
)
3 eleq1 2294 . . . 4  |-  ( `' `' F  =  F  ->  ( `' `' F  e.  ( K Homeo J )  <-> 
F  e.  ( K
Homeo J ) ) )
42, 3sylbi 121 . . 3  |-  ( Rel 
F  ->  ( `' `' F  e.  ( K Homeo J )  <->  F  e.  ( K Homeo J ) ) )
51, 4imbitrid 154 . 2  |-  ( Rel 
F  ->  ( `' F  e.  ( J Homeo K )  ->  F  e.  ( K Homeo J ) ) )
6 hmeocnv 15118 . 2  |-  ( F  e.  ( K Homeo J )  ->  `' F  e.  ( J Homeo K ) )
75, 6impbid1 142 1  |-  ( Rel 
F  ->  ( `' F  e.  ( J Homeo K )  <->  F  e.  ( K Homeo J ) ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    <-> wb 105    = wceq 1398    e. wcel 2202   `'ccnv 4730   Rel wrel 4736  (class class class)co 6028   Homeochmeo 15111
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-in1 619  ax-in2 620  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  ax-setind 4641
This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-fal 1404  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-ne 2404  df-ral 2516  df-rex 2517  df-rab 2520  df-v 2805  df-sbc 3033  df-csb 3129  df-dif 3203  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-iun 3977  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-fv 5341  df-ov 6031  df-oprab 6032  df-mpo 6033  df-1st 6312  df-2nd 6313  df-map 6862  df-top 14809  df-topon 14822  df-cn 14999  df-hmeo 15112
This theorem is referenced by: (None)
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