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Theorem fnmpoi 6367
Description: Functionality and domain of a class given by the maps-to notation. (Contributed by FL, 17-May-2010.)
Hypotheses
Ref Expression
fmpo.1  |-  F  =  ( x  e.  A ,  y  e.  B  |->  C )
fnmpoi.2  |-  C  e. 
_V
Assertion
Ref Expression
fnmpoi  |-  F  Fn  ( A  X.  B
)
Distinct variable groups:    x, A, y   
x, B, y
Allowed substitution hints:    C( x, y)    F( x, y)

Proof of Theorem fnmpoi
StepHypRef Expression
1 fnmpoi.2 . . 3  |-  C  e. 
_V
21rgen2w 2588 . 2  |-  A. x  e.  A  A. y  e.  B  C  e.  _V
3 fmpo.1 . . 3  |-  F  =  ( x  e.  A ,  y  e.  B  |->  C )
43fnmpo 6366 . 2  |-  ( A. x  e.  A  A. y  e.  B  C  e.  _V  ->  F  Fn  ( A  X.  B
) )
52, 4ax-mp 5 1  |-  F  Fn  ( A  X.  B
)
Colors of variables: wff set class
Syntax hints:    = wceq 1397    e. wcel 2202   A.wral 2510   _Vcvv 2802    X. cxp 4723    Fn wfn 5321    e. cmpo 6019
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 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-13 2204  ax-14 2205  ax-ext 2213  ax-sep 4207  ax-pow 4264  ax-pr 4299  ax-un 4530
This theorem depends on definitions:  df-bi 117  df-3an 1006  df-tru 1400  df-nf 1509  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2363  df-ral 2515  df-rex 2516  df-rab 2519  df-v 2804  df-sbc 3032  df-csb 3128  df-un 3204  df-in 3206  df-ss 3213  df-pw 3654  df-sn 3675  df-pr 3676  df-op 3678  df-uni 3894  df-iun 3972  df-br 4089  df-opab 4151  df-mpt 4152  df-id 4390  df-xp 4731  df-rel 4732  df-cnv 4733  df-co 4734  df-dm 4735  df-rn 4736  df-res 4737  df-ima 4738  df-iota 5286  df-fun 5328  df-fn 5329  df-f 5330  df-fv 5334  df-oprab 6021  df-mpo 6022  df-1st 6302  df-2nd 6303
This theorem is referenced by:  dmmpo  6368  fnoa  6614  fnom  6617  fnoei  6619  fnmap  6823  fnpm  6824  restfn  13325  fngsum  13470  fnpsr  14680  fnmpl  14706
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