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Theorem fnpm 6712
Description: Partial function exponentiation has a universal domain. (Contributed by Mario Carneiro, 14-Nov-2013.)
Assertion
Ref Expression
fnpm  |-  ^pm  Fn  ( _V  X.  _V )

Proof of Theorem fnpm
Dummy variables  x  f  y are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 df-pm 6707 . 2  |-  ^pm  =  ( x  e.  _V ,  y  e.  _V  |->  { f  e.  ~P ( y  X.  x
)  |  Fun  f } )
2 vex 2763 . . . . 5  |-  y  e. 
_V
3 vex 2763 . . . . 5  |-  x  e. 
_V
42, 3xpex 4775 . . . 4  |-  ( y  X.  x )  e. 
_V
54pwex 4213 . . 3  |-  ~P (
y  X.  x )  e.  _V
65rabex 4174 . 2  |-  { f  e.  ~P ( y  X.  x )  |  Fun  f }  e.  _V
71, 6fnmpoi 6258 1  |-  ^pm  Fn  ( _V  X.  _V )
Colors of variables: wff set class
Syntax hints:   {crab 2476   _Vcvv 2760   ~Pcpw 3602    X. cxp 4658   Fun wfun 5249    Fn wfn 5250    ^pm cpm 6705
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-io 710  ax-5 1458  ax-7 1459  ax-gen 1460  ax-ie1 1504  ax-ie2 1505  ax-8 1515  ax-10 1516  ax-11 1517  ax-i12 1518  ax-bndl 1520  ax-4 1521  ax-17 1537  ax-i9 1541  ax-ial 1545  ax-i5r 1546  ax-13 2166  ax-14 2167  ax-ext 2175  ax-sep 4148  ax-pow 4204  ax-pr 4239  ax-un 4465
This theorem depends on definitions:  df-bi 117  df-3an 982  df-tru 1367  df-nf 1472  df-sb 1774  df-eu 2045  df-mo 2046  df-clab 2180  df-cleq 2186  df-clel 2189  df-nfc 2325  df-ral 2477  df-rex 2478  df-rab 2481  df-v 2762  df-sbc 2987  df-csb 3082  df-un 3158  df-in 3160  df-ss 3167  df-pw 3604  df-sn 3625  df-pr 3626  df-op 3628  df-uni 3837  df-iun 3915  df-br 4031  df-opab 4092  df-mpt 4093  df-id 4325  df-xp 4666  df-rel 4667  df-cnv 4668  df-co 4669  df-dm 4670  df-rn 4671  df-res 4672  df-ima 4673  df-iota 5216  df-fun 5257  df-fn 5258  df-f 5259  df-fv 5263  df-oprab 5923  df-mpo 5924  df-1st 6195  df-2nd 6196  df-pm 6707
This theorem is referenced by:  lmfval  14371
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