ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  xpsff1o2 Unicode version

Theorem xpsff1o2 13379
Description: The function appearing in xpsval 13380 is a bijection from the cartesian product to the indexed cartesian product indexed on the pair  2o  =  { (/)
,  1o }. (Contributed by Mario Carneiro, 24-Jan-2015.)
Hypothesis
Ref Expression
xpsff1o.f  |-  F  =  ( x  e.  A ,  y  e.  B  |->  { <. (/) ,  x >. , 
<. 1o ,  y >. } )
Assertion
Ref Expression
xpsff1o2  |-  F :
( A  X.  B
)
-1-1-onto-> ran  F
Distinct variable groups:    x, A, y   
x, B, y
Allowed substitution hints:    F( x, y)

Proof of Theorem xpsff1o2
Dummy variable  k is distinct from all other variables.
StepHypRef Expression
1 xpsff1o.f . . 3  |-  F  =  ( x  e.  A ,  y  e.  B  |->  { <. (/) ,  x >. , 
<. 1o ,  y >. } )
21xpsff1o 13377 . 2  |-  F :
( A  X.  B
)
-1-1-onto-> X_ k  e.  2o  if ( k  =  (/) ,  A ,  B )
3 f1of1 5570 . 2  |-  ( F : ( A  X.  B ) -1-1-onto-> X_ k  e.  2o  if ( k  =  (/) ,  A ,  B )  ->  F : ( A  X.  B )
-1-1->
X_ k  e.  2o  if ( k  =  (/) ,  A ,  B ) )
4 f1f1orn 5582 . 2  |-  ( F : ( A  X.  B ) -1-1-> X_ k  e.  2o  if ( k  =  (/) ,  A ,  B )  ->  F : ( A  X.  B ) -1-1-onto-> ran  F )
52, 3, 4mp2b 8 1  |-  F :
( A  X.  B
)
-1-1-onto-> ran  F
Colors of variables: wff set class
Syntax hints:    = wceq 1395   (/)c0 3491   ifcif 3602   {cpr 3667   <.cop 3669    X. cxp 4716   ran crn 4719   -1-1->wf1 5314   -1-1-onto->wf1o 5316    e. cmpo 6002   1oc1o 6553   2oc2o 6554   X_cixp 6843
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 617  ax-in2 618  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-13 2202  ax-14 2203  ax-ext 2211  ax-coll 4198  ax-sep 4201  ax-nul 4209  ax-pow 4257  ax-pr 4292  ax-un 4523  ax-setind 4628  ax-iinf 4679
This theorem depends on definitions:  df-bi 117  df-dc 840  df-3or 1003  df-3an 1004  df-tru 1398  df-fal 1401  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-ne 2401  df-ral 2513  df-rex 2514  df-reu 2515  df-rab 2517  df-v 2801  df-sbc 3029  df-csb 3125  df-dif 3199  df-un 3201  df-in 3203  df-ss 3210  df-nul 3492  df-if 3603  df-pw 3651  df-sn 3672  df-pr 3673  df-op 3675  df-uni 3888  df-int 3923  df-iun 3966  df-br 4083  df-opab 4145  df-mpt 4146  df-tr 4182  df-id 4383  df-iord 4456  df-on 4458  df-suc 4461  df-iom 4682  df-xp 4724  df-rel 4725  df-cnv 4726  df-co 4727  df-dm 4728  df-rn 4729  df-res 4730  df-ima 4731  df-iota 5277  df-fun 5319  df-fn 5320  df-f 5321  df-f1 5322  df-fo 5323  df-f1o 5324  df-fv 5325  df-ov 6003  df-oprab 6004  df-mpo 6005  df-1st 6284  df-2nd 6285  df-1o 6560  df-2o 6561  df-er 6678  df-ixp 6844  df-en 6886  df-fin 6888
This theorem is referenced by: (None)
  Copyright terms: Public domain W3C validator