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

Theorem inteximm 3924
Description: The intersection of an inhabited class exists. (Contributed by Jim Kingdon, 27-Aug-2018.)
Assertion
Ref Expression
inteximm  |-  ( E. x  x  e.  A  ->  |^| A  e.  _V )
Distinct variable group:    x, A

Proof of Theorem inteximm
StepHypRef Expression
1 intss1 3651 . . 3  |-  ( x  e.  A  ->  |^| A  C_  x )
2 vex 2604 . . . 4  |-  x  e. 
_V
32ssex 3915 . . 3  |-  ( |^| A  C_  x  ->  |^| A  e.  _V )
41, 3syl 14 . 2  |-  ( x  e.  A  ->  |^| A  e.  _V )
54exlimiv 1529 1  |-  ( E. x  x  e.  A  ->  |^| A  e.  _V )
Colors of variables: wff set class
Syntax hints:    -> wi 4   E.wex 1421    e. wcel 1433   _Vcvv 2601    C_ wss 2973   |^|cint 3636
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 104  ax-ia2 105  ax-ia3 106  ax-io 662  ax-5 1376  ax-7 1377  ax-gen 1378  ax-ie1 1422  ax-ie2 1423  ax-8 1435  ax-10 1436  ax-11 1437  ax-i12 1438  ax-bndl 1439  ax-4 1440  ax-17 1459  ax-i9 1463  ax-ial 1467  ax-i5r 1468  ax-ext 2063  ax-sep 3896
This theorem depends on definitions:  df-bi 115  df-tru 1287  df-nf 1390  df-sb 1686  df-clab 2068  df-cleq 2074  df-clel 2077  df-nfc 2208  df-v 2603  df-in 2979  df-ss 2986  df-int 3637
This theorem is referenced by:  intexabim  3927  iinexgm  3929  onintonm  4261
  Copyright terms: Public domain W3C validator