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Theorem tposssxp 6254
Description: The transposition is a subset of a cross product. (Contributed by Mario Carneiro, 12-Jan-2017.)
Assertion
Ref Expression
tposssxp  |- tpos  F  C_  ( ( `' dom  F  u.  { (/) } )  X.  ran  F )

Proof of Theorem tposssxp
Dummy variable  x is distinct from all other variables.
StepHypRef Expression
1 df-tpos 6250 . . 3  |- tpos  F  =  ( F  o.  (
x  e.  ( `' dom  F  u.  { (/)
} )  |->  U. `' { x } ) )
2 cossxp 5211 . . 3  |-  ( F  o.  ( x  e.  ( `' dom  F  u.  { (/) } )  |->  U. `' { x } ) )  C_  ( dom  ( x  e.  ( `' dom  F  u.  { (/)
} )  |->  U. `' { x } )  X.  ran  F )
31, 2eqsstri 3221 . 2  |- tpos  F  C_  ( dom  ( x  e.  ( `' dom  F  u.  { (/) } )  |->  U. `' { x } )  X.  ran  F )
4 eqid 2296 . . . 4  |-  ( x  e.  ( `' dom  F  u.  { (/) } ) 
|->  U. `' { x } )  =  ( x  e.  ( `' dom  F  u.  { (/)
} )  |->  U. `' { x } )
54dmmptss 5185 . . 3  |-  dom  (
x  e.  ( `' dom  F  u.  { (/)
} )  |->  U. `' { x } ) 
C_  ( `' dom  F  u.  { (/) } )
6 xpss1 4811 . . 3  |-  ( dom  ( x  e.  ( `' dom  F  u.  { (/)
} )  |->  U. `' { x } ) 
C_  ( `' dom  F  u.  { (/) } )  ->  ( dom  (
x  e.  ( `' dom  F  u.  { (/)
} )  |->  U. `' { x } )  X.  ran  F ) 
C_  ( ( `' dom  F  u.  { (/)
} )  X.  ran  F ) )
75, 6ax-mp 8 . 2  |-  ( dom  ( x  e.  ( `' dom  F  u.  { (/)
} )  |->  U. `' { x } )  X.  ran  F ) 
C_  ( ( `' dom  F  u.  { (/)
} )  X.  ran  F )
83, 7sstri 3201 1  |- tpos  F  C_  ( ( `' dom  F  u.  { (/) } )  X.  ran  F )
Colors of variables: wff set class
Syntax hints:    u. cun 3163    C_ wss 3165   (/)c0 3468   {csn 3653   U.cuni 3843    e. cmpt 4093    X. cxp 4703   `'ccnv 4704   dom cdm 4705   ran crn 4706    o. ccom 4709  tpos ctpos 6249
This theorem is referenced by:  reltpos  6255  tposexg  6264  wuntpos  8372  catcoppccl  13956
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1536  ax-5 1547  ax-17 1606  ax-9 1644  ax-8 1661  ax-14 1700  ax-6 1715  ax-7 1720  ax-11 1727  ax-12 1878  ax-ext 2277  ax-sep 4157  ax-nul 4165  ax-pr 4230
This theorem depends on definitions:  df-bi 177  df-or 359  df-an 360  df-3an 936  df-tru 1310  df-ex 1532  df-nf 1535  df-sb 1639  df-eu 2160  df-mo 2161  df-clab 2283  df-cleq 2289  df-clel 2292  df-nfc 2421  df-ne 2461  df-ral 2561  df-rex 2562  df-rab 2565  df-v 2803  df-dif 3168  df-un 3170  df-in 3172  df-ss 3179  df-nul 3469  df-if 3579  df-sn 3659  df-pr 3660  df-op 3662  df-br 4040  df-opab 4094  df-mpt 4095  df-xp 4711  df-rel 4712  df-cnv 4713  df-co 4714  df-dm 4715  df-rn 4716  df-res 4717  df-ima 4718  df-tpos 6250
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