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Theorem hmeoimaf1o 12486
Description: The function mapping open sets to their images under a homeomorphism is a bijection of topologies. (Contributed by Mario Carneiro, 10-Sep-2015.)
Hypothesis
Ref Expression
hmeoimaf1o.1  |-  G  =  ( x  e.  J  |->  ( F " x
) )
Assertion
Ref Expression
hmeoimaf1o  |-  ( F  e.  ( J Homeo K )  ->  G : J
-1-1-onto-> K )
Distinct variable groups:    x, F    x, J    x, K
Allowed substitution hint:    G( x)

Proof of Theorem hmeoimaf1o
Dummy variable  y is distinct from all other variables.
StepHypRef Expression
1 hmeoimaf1o.1 . 2  |-  G  =  ( x  e.  J  |->  ( F " x
) )
2 hmeoima 12482 . 2  |-  ( ( F  e.  ( J
Homeo K )  /\  x  e.  J )  ->  ( F " x )  e.  K )
3 hmeocn 12477 . . 3  |-  ( F  e.  ( J Homeo K )  ->  F  e.  ( J  Cn  K
) )
4 cnima 12392 . . 3  |-  ( ( F  e.  ( J  Cn  K )  /\  y  e.  K )  ->  ( `' F "
y )  e.  J
)
53, 4sylan 281 . 2  |-  ( ( F  e.  ( J
Homeo K )  /\  y  e.  K )  ->  ( `' F " y )  e.  J )
6 eqid 2139 . . . . . . 7  |-  U. J  =  U. J
7 eqid 2139 . . . . . . 7  |-  U. K  =  U. K
86, 7hmeof1o 12481 . . . . . 6  |-  ( F  e.  ( J Homeo K )  ->  F : U. J -1-1-onto-> U. K )
98adantr 274 . . . . 5  |-  ( ( F  e.  ( J
Homeo K )  /\  (
x  e.  J  /\  y  e.  K )
)  ->  F : U. J -1-1-onto-> U. K )
10 f1of1 5366 . . . . 5  |-  ( F : U. J -1-1-onto-> U. K  ->  F : U. J -1-1-> U. K )
119, 10syl 14 . . . 4  |-  ( ( F  e.  ( J
Homeo K )  /\  (
x  e.  J  /\  y  e.  K )
)  ->  F : U. J -1-1-> U. K )
12 elssuni 3764 . . . . 5  |-  ( x  e.  J  ->  x  C_ 
U. J )
1312ad2antrl 481 . . . 4  |-  ( ( F  e.  ( J
Homeo K )  /\  (
x  e.  J  /\  y  e.  K )
)  ->  x  C_  U. J
)
14 cnvimass 4902 . . . . 5  |-  ( `' F " y ) 
C_  dom  F
15 f1dm 5333 . . . . . 6  |-  ( F : U. J -1-1-> U. K  ->  dom  F  =  U. J )
1611, 15syl 14 . . . . 5  |-  ( ( F  e.  ( J
Homeo K )  /\  (
x  e.  J  /\  y  e.  K )
)  ->  dom  F  = 
U. J )
1714, 16sseqtrid 3147 . . . 4  |-  ( ( F  e.  ( J
Homeo K )  /\  (
x  e.  J  /\  y  e.  K )
)  ->  ( `' F " y )  C_  U. J )
18 f1imaeq 5676 . . . 4  |-  ( ( F : U. J -1-1-> U. K  /\  ( x 
C_  U. J  /\  ( `' F " y ) 
C_  U. J ) )  ->  ( ( F
" x )  =  ( F " ( `' F " y ) )  <->  x  =  ( `' F " y ) ) )
1911, 13, 17, 18syl12anc 1214 . . 3  |-  ( ( F  e.  ( J
Homeo K )  /\  (
x  e.  J  /\  y  e.  K )
)  ->  ( ( F " x )  =  ( F " ( `' F " y ) )  <->  x  =  ( `' F " y ) ) )
20 f1ofo 5374 . . . . . . 7  |-  ( F : U. J -1-1-onto-> U. K  ->  F : U. J -onto-> U. K )
219, 20syl 14 . . . . . 6  |-  ( ( F  e.  ( J
Homeo K )  /\  (
x  e.  J  /\  y  e.  K )
)  ->  F : U. J -onto-> U. K )
22 elssuni 3764 . . . . . . 7  |-  ( y  e.  K  ->  y  C_ 
U. K )
2322ad2antll 482 . . . . . 6  |-  ( ( F  e.  ( J
Homeo K )  /\  (
x  e.  J  /\  y  e.  K )
)  ->  y  C_  U. K )
24 foimacnv 5385 . . . . . 6  |-  ( ( F : U. J -onto-> U. K  /\  y  C_ 
U. K )  -> 
( F " ( `' F " y ) )  =  y )
2521, 23, 24syl2anc 408 . . . . 5  |-  ( ( F  e.  ( J
Homeo K )  /\  (
x  e.  J  /\  y  e.  K )
)  ->  ( F " ( `' F "
y ) )  =  y )
2625eqeq2d 2151 . . . 4  |-  ( ( F  e.  ( J
Homeo K )  /\  (
x  e.  J  /\  y  e.  K )
)  ->  ( ( F " x )  =  ( F " ( `' F " y ) )  <->  ( F "
x )  =  y ) )
27 eqcom 2141 . . . 4  |-  ( ( F " x )  =  y  <->  y  =  ( F " x ) )
2826, 27syl6bb 195 . . 3  |-  ( ( F  e.  ( J
Homeo K )  /\  (
x  e.  J  /\  y  e.  K )
)  ->  ( ( F " x )  =  ( F " ( `' F " y ) )  <->  y  =  ( F " x ) ) )
2919, 28bitr3d 189 . 2  |-  ( ( F  e.  ( J
Homeo K )  /\  (
x  e.  J  /\  y  e.  K )
)  ->  ( x  =  ( `' F " y )  <->  y  =  ( F " x ) ) )
301, 2, 5, 29f1o2d 5975 1  |-  ( F  e.  ( J Homeo K )  ->  G : J
-1-1-onto-> K )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 103    <-> wb 104    = wceq 1331    e. wcel 1480    C_ wss 3071   U.cuni 3736    |-> cmpt 3989   `'ccnv 4538   dom cdm 4539   "cima 4542   -1-1->wf1 5120   -onto->wfo 5121   -1-1-onto->wf1o 5122  (class class class)co 5774    Cn ccn 12357   Homeochmeo 12472
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-in1 603  ax-in2 604  ax-io 698  ax-5 1423  ax-7 1424  ax-gen 1425  ax-ie1 1469  ax-ie2 1470  ax-8 1482  ax-10 1483  ax-11 1484  ax-i12 1485  ax-bndl 1486  ax-4 1487  ax-13 1491  ax-14 1492  ax-17 1506  ax-i9 1510  ax-ial 1514  ax-i5r 1515  ax-ext 2121  ax-sep 4046  ax-pow 4098  ax-pr 4131  ax-un 4355  ax-setind 4452
This theorem depends on definitions:  df-bi 116  df-3an 964  df-tru 1334  df-fal 1337  df-nf 1437  df-sb 1736  df-eu 2002  df-mo 2003  df-clab 2126  df-cleq 2132  df-clel 2135  df-nfc 2270  df-ne 2309  df-ral 2421  df-rex 2422  df-rab 2425  df-v 2688  df-sbc 2910  df-csb 3004  df-dif 3073  df-un 3075  df-in 3077  df-ss 3084  df-pw 3512  df-sn 3533  df-pr 3534  df-op 3536  df-uni 3737  df-iun 3815  df-br 3930  df-opab 3990  df-mpt 3991  df-id 4215  df-xp 4545  df-rel 4546  df-cnv 4547  df-co 4548  df-dm 4549  df-rn 4550  df-res 4551  df-ima 4552  df-iota 5088  df-fun 5125  df-fn 5126  df-f 5127  df-f1 5128  df-fo 5129  df-f1o 5130  df-fv 5131  df-ov 5777  df-oprab 5778  df-mpo 5779  df-1st 6038  df-2nd 6039  df-map 6544  df-top 12168  df-topon 12181  df-cn 12360  df-hmeo 12473
This theorem is referenced by: (None)
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