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Definition df-v 2531
Description: Define the universal class. Definition 5.20 of [TakeutiZaring] p. 21. Also Definition 2.9 of [Quine] p. 19. (Contributed by NM, 5-Aug-1993.)
Assertion
Ref Expression
df-v  _V  {  |  }

Detailed syntax breakdown of Definition df-v
StepHypRef Expression
1 cvv 2529 . 2  _V
2 vx . . . 4  setvar
32, 2weq 1368 . . 3
43, 2cab 2002 . 2  {  |  }
51, 4wceq 1226 1  _V  {  |  }
Colors of variables: wff set class
This definition is referenced by:  vex  2532  int0  3595  ruv  4203
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