Theorem bj-vnex 16597

Description: vnex 4225 from bounded separation. (Contributed by BJ, 18-Nov-2019.) (Proof modification is discouraged.)

Assertion

Ref	Expression
bj-vnex	|- -. E. x x = _V

Proof of Theorem bj-vnex

Step	Hyp	Ref	Expression
1		bj-vprc 16595	. 2 |- -. _V e. _V
2		isset 2810	. 2 |- ( _V e. _V <-> E. x x = _V )
3	1, 2	mtbi 677	1 |- -. E. x x = _V

Syntax hints:   -. wn 3   = wceq 1398   E.wex 1541   e. wcel 2202   _Vcvv 2803

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 1496  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-13 2204  ax-14 2205  ax-ext 2213  ax-bdn 16516  ax-bdel 16520  ax-bdsep 16583

This theorem depends on definitions:  df-bi 117  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1811  df-clab 2218  df-cleq 2224  df-clel 2227  df-v 2805

This theorem is referenced by: (None)