ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  wnfc Unicode version
Syntax Definition wnfc 2295
Description: Extend wff definition to include the not-free predicate for classes.
Hypotheses
Ref Expression
vx setvar x
cA class A
Assertion
Ref Expression
wnfc wff F/_ x A
See definition df-nfc 2297 for more information.
Colors of variables: wff set class
  Copyright terms: Public domain W3C validator