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Theorem bj-vprc 16491
Description: vprc 4221 from bounded separation. (Contributed by BJ, 18-Nov-2019.) (Proof modification is discouraged.)
Assertion
Ref Expression
bj-vprc  |-  -.  _V  e.  _V

Proof of Theorem bj-vprc
Dummy variables  x  y are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 bj-nalset 16490 . . 3  |-  -.  E. x A. y  y  e.  x
2 vex 2805 . . . . . . 7  |-  y  e. 
_V
32tbt 247 . . . . . 6  |-  ( y  e.  x  <->  ( y  e.  x  <->  y  e.  _V ) )
43albii 1518 . . . . 5  |-  ( A. y  y  e.  x  <->  A. y ( y  e.  x  <->  y  e.  _V ) )
5 dfcleq 2225 . . . . 5  |-  ( x  =  _V  <->  A. y
( y  e.  x  <->  y  e.  _V ) )
64, 5bitr4i 187 . . . 4  |-  ( A. y  y  e.  x  <->  x  =  _V )
76exbii 1653 . . 3  |-  ( E. x A. y  y  e.  x  <->  E. x  x  =  _V )
81, 7mtbi 676 . 2  |-  -.  E. x  x  =  _V
9 isset 2809 . 2  |-  ( _V  e.  _V  <->  E. x  x  =  _V )
108, 9mtbir 677 1  |-  -.  _V  e.  _V
Colors of variables: wff set class
Syntax hints:   -. wn 3    <-> wb 105   A.wal 1395    = wceq 1397   E.wex 1540    e. wcel 2202   _Vcvv 2802
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-in1 619  ax-in2 620  ax-5 1495  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-13 2204  ax-14 2205  ax-ext 2213  ax-bdn 16412  ax-bdel 16416  ax-bdsep 16479
This theorem depends on definitions:  df-bi 117  df-tru 1400  df-fal 1403  df-nf 1509  df-sb 1811  df-clab 2218  df-cleq 2224  df-clel 2227  df-v 2804
This theorem is referenced by:  bj-nvel  16492  bj-vnex  16493  bj-intexr  16503  bj-intnexr  16504
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