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

Theorem fmpti 5668
Description: Functionality of the mapping operation. (Contributed by NM, 19-Mar-2005.) (Revised by Mario Carneiro, 1-Sep-2015.)
Hypotheses
Ref Expression
fmpt.1  |-  F  =  ( x  e.  A  |->  C )
fmpti.2  |-  ( x  e.  A  ->  C  e.  B )
Assertion
Ref Expression
fmpti  |-  F : A
--> B
Distinct variable groups:    x, A    x, B
Allowed substitution hints:    C( x)    F( x)

Proof of Theorem fmpti
StepHypRef Expression
1 fmpti.2 . . 3  |-  ( x  e.  A  ->  C  e.  B )
21rgen 2530 . 2  |-  A. x  e.  A  C  e.  B
3 fmpt.1 . . 3  |-  F  =  ( x  e.  A  |->  C )
43fmpt 5666 . 2  |-  ( A. x  e.  A  C  e.  B  <->  F : A --> B )
52, 4mpbi 145 1  |-  F : A
--> B
Colors of variables: wff set class
Syntax hints:    -> wi 4    = wceq 1353    e. wcel 2148   A.wral 2455    |-> cmpt 4064   -->wf 5212
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 709  ax-5 1447  ax-7 1448  ax-gen 1449  ax-ie1 1493  ax-ie2 1494  ax-8 1504  ax-10 1505  ax-11 1506  ax-i12 1507  ax-bndl 1509  ax-4 1510  ax-17 1526  ax-i9 1530  ax-ial 1534  ax-i5r 1535  ax-14 2151  ax-ext 2159  ax-sep 4121  ax-pow 4174  ax-pr 4209
This theorem depends on definitions:  df-bi 117  df-3an 980  df-tru 1356  df-nf 1461  df-sb 1763  df-eu 2029  df-mo 2030  df-clab 2164  df-cleq 2170  df-clel 2173  df-nfc 2308  df-ral 2460  df-rex 2461  df-rab 2464  df-v 2739  df-sbc 2963  df-un 3133  df-in 3135  df-ss 3142  df-pw 3577  df-sn 3598  df-pr 3599  df-op 3601  df-uni 3810  df-br 4004  df-opab 4065  df-mpt 4066  df-id 4293  df-xp 4632  df-rel 4633  df-cnv 4634  df-co 4635  df-dm 4636  df-rn 4637  df-res 4638  df-ima 4639  df-iota 5178  df-fun 5218  df-fn 5219  df-f 5220  df-fv 5224
This theorem is referenced by:  omp1eomlem  7092  fnn0nninf  10436  cjf  10855  ref  10863  imf  10864  absf  11118  eff  11670  sinf  11711  cosf  11712  fnum  12189  fden  12190  divcnap  14025  dveflem  14157  nnsf  14724  nninfself  14732
  Copyright terms: Public domain W3C validator