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Theorem hmeoimaf1o 15196
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 15192 . 2  |-  ( ( F  e.  ( J
Homeo K )  /\  x  e.  J )  ->  ( F " x )  e.  K )
3 hmeocn 15187 . . 3  |-  ( F  e.  ( J Homeo K )  ->  F  e.  ( J  Cn  K
) )
4 cnima 15102 . . 3  |-  ( ( F  e.  ( J  Cn  K )  /\  y  e.  K )  ->  ( `' F "
y )  e.  J
)
53, 4sylan 283 . 2  |-  ( ( F  e.  ( J
Homeo K )  /\  y  e.  K )  ->  ( `' F " y )  e.  J )
6 eqid 2234 . . . . . . 7  |-  U. J  =  U. J
7 eqid 2234 . . . . . . 7  |-  U. K  =  U. K
86, 7hmeof1o 15191 . . . . . 6  |-  ( F  e.  ( J Homeo K )  ->  F : U. J -1-1-onto-> U. K )
98adantr 276 . . . . 5  |-  ( ( F  e.  ( J
Homeo K )  /\  (
x  e.  J  /\  y  e.  K )
)  ->  F : U. J -1-1-onto-> U. K )
10 f1of1 5615 . . . . 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 3944 . . . . 5  |-  ( x  e.  J  ->  x  C_ 
U. J )
1312ad2antrl 490 . . . 4  |-  ( ( F  e.  ( J
Homeo K )  /\  (
x  e.  J  /\  y  e.  K )
)  ->  x  C_  U. J
)
14 cnvimass 5127 . . . . 5  |-  ( `' F " y ) 
C_  dom  F
15 f1dm 5580 . . . . . 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 3290 . . . 4  |-  ( ( F  e.  ( J
Homeo K )  /\  (
x  e.  J  /\  y  e.  K )
)  ->  ( `' F " y )  C_  U. J )
18 f1imaeq 5950 . . . 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 1272 . . 3  |-  ( ( F  e.  ( J
Homeo K )  /\  (
x  e.  J  /\  y  e.  K )
)  ->  ( ( F " x )  =  ( F " ( `' F " y ) )  <->  x  =  ( `' F " y ) ) )
20 f1ofo 5623 . . . . . . 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 3944 . . . . . . 7  |-  ( y  e.  K  ->  y  C_ 
U. K )
2322ad2antll 491 . . . . . 6  |-  ( ( F  e.  ( J
Homeo K )  /\  (
x  e.  J  /\  y  e.  K )
)  ->  y  C_  U. K )
24 foimacnv 5634 . . . . . 6  |-  ( ( F : U. J -onto-> U. K  /\  y  C_ 
U. K )  -> 
( F " ( `' F " y ) )  =  y )
2521, 23, 24syl2anc 411 . . . . 5  |-  ( ( F  e.  ( J
Homeo K )  /\  (
x  e.  J  /\  y  e.  K )
)  ->  ( F " ( `' F "
y ) )  =  y )
2625eqeq2d 2246 . . . 4  |-  ( ( F  e.  ( J
Homeo K )  /\  (
x  e.  J  /\  y  e.  K )
)  ->  ( ( F " x )  =  ( F " ( `' F " y ) )  <->  ( F "
x )  =  y ) )
27 eqcom 2236 . . . 4  |-  ( ( F " x )  =  y  <->  y  =  ( F " x ) )
2826, 27bitrdi 196 . . 3  |-  ( ( F  e.  ( J
Homeo K )  /\  (
x  e.  J  /\  y  e.  K )
)  ->  ( ( F " x )  =  ( F " ( `' F " y ) )  <->  y  =  ( F " x ) ) )
2919, 28bitr3d 190 . 2  |-  ( ( F  e.  ( J
Homeo K )  /\  (
x  e.  J  /\  y  e.  K )
)  ->  ( x  =  ( `' F " y )  <->  y  =  ( F " x ) ) )
301, 2, 5, 29f1o2d 6262 1  |-  ( F  e.  ( J Homeo K )  ->  G : J
-1-1-onto-> K )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 104    <-> wb 105    = wceq 1398    e. wcel 2205    C_ wss 3213   U.cuni 3916    |-> cmpt 4173   `'ccnv 4750   dom cdm 4751   "cima 4754   -1-1->wf1 5351   -onto->wfo 5352   -1-1-onto->wf1o 5353  (class class class)co 6052    Cn ccn 15067   Homeochmeo 15182
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 2207  ax-14 2208  ax-ext 2216  ax-sep 4230  ax-pow 4289  ax-pr 4324  ax-un 4556  ax-setind 4661
This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1812  df-eu 2085  df-mo 2086  df-clab 2221  df-cleq 2227  df-clel 2230  df-nfc 2375  df-ne 2415  df-ral 2527  df-rex 2528  df-rab 2531  df-v 2817  df-sbc 3045  df-csb 3141  df-dif 3215  df-un 3217  df-in 3219  df-ss 3226  df-pw 3673  df-sn 3697  df-pr 3698  df-op 3700  df-uni 3917  df-iun 3995  df-br 4112  df-opab 4174  df-mpt 4175  df-id 4416  df-xp 4757  df-rel 4758  df-cnv 4759  df-co 4760  df-dm 4761  df-rn 4762  df-res 4763  df-ima 4764  df-iota 5314  df-fun 5356  df-fn 5357  df-f 5358  df-f1 5359  df-fo 5360  df-f1o 5361  df-fv 5362  df-ov 6055  df-oprab 6056  df-mpo 6057  df-1st 6336  df-2nd 6337  df-map 6886  df-top 14880  df-topon 14893  df-cn 15070  df-hmeo 15183
This theorem is referenced by: (None)
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