NFE Home New Foundations Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  NFE Home  >  Th. List  >  cref Unicode version
Syntax Definition cref 5889
Description: Extend the definition of a class to include the set of all reflexive relationships.
Assertion
Ref Expression
cref Ref
See definition df-ref 5900 for more information.
Colors of variables: wff setvar class
  Copyright terms: Public domain W3C validator