MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  cref Structured version   Visualization version   GIF version

Syntax Definition cref 21018
Description: Extend class definition to include the refinement relation.
Assertion
Ref Expression
cref class Ref

See definition df-ref 21021 for more information.

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