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

Theorem fnmpti 5452
Description: Functionality and domain of an ordered-pair class abstraction. (Contributed by NM, 29-Jan-2004.) (Revised by Mario Carneiro, 31-Aug-2015.)
Hypotheses
Ref Expression
fnmpti.1  |-  B  e. 
_V
fnmpti.2  |-  F  =  ( x  e.  A  |->  B )
Assertion
Ref Expression
fnmpti  |-  F  Fn  A
Distinct variable group:    x, A
Allowed substitution hints:    B( x)    F( x)

Proof of Theorem fnmpti
StepHypRef Expression
1 fnmpti.1 . . 3  |-  B  e. 
_V
21rgenw 2585 . 2  |-  A. x  e.  A  B  e.  _V
3 fnmpti.2 . . 3  |-  F  =  ( x  e.  A  |->  B )
43mptfng 5449 . 2  |-  ( A. x  e.  A  B  e.  _V  <->  F  Fn  A
)
52, 4mpbi 145 1  |-  F  Fn  A
Colors of variables: wff set class
Syntax hints:    = wceq 1395    e. wcel 2200   A.wral 2508   _Vcvv 2799    |-> cmpt 4145    Fn wfn 5313
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 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-14 2203  ax-ext 2211  ax-sep 4202  ax-pow 4258  ax-pr 4293
This theorem depends on definitions:  df-bi 117  df-3an 1004  df-tru 1398  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-ral 2513  df-rex 2514  df-v 2801  df-un 3201  df-in 3203  df-ss 3210  df-pw 3651  df-sn 3672  df-pr 3673  df-op 3675  df-br 4084  df-opab 4146  df-mpt 4147  df-id 4384  df-xp 4725  df-rel 4726  df-cnv 4727  df-co 4728  df-dm 4729  df-fun 5320  df-fn 5321
This theorem is referenced by:  dmmpti  5453  fconst  5521  eufnfv  5870  idref  5880  fo1st  6303  fo2nd  6304  reldm  6332  oafnex  6590  fnoei  6598  oeiexg  6599  mapsnf1o2  6843  nninfctlemfo  12561  1arith  12890  slotslfn  13058  topnfn  13277  fn0g  13408  fnmgp  13885  rlmfn  14417  blfn  14515  fncld  14772  xmetunirn  15032  nnnninfex  16388  nninfnfiinf  16389
  Copyright terms: Public domain W3C validator