NFE Home New Foundations Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  NFE Home  >  Th. List  >  wnf Unicode version

Syntax Definition wnf 1544
Description: Extend wff definition to include the not-free predicate.
Hypotheses
Ref Expression
wph
vx
Assertion
Ref Expression
wnf  F/

See definition df-nf 1545 for more information.

Colors of variables: wff setvar class
  Copyright terms: Public domain W3C validator