MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  c0 Unicode version

Syntax Definition c0 3784
Description: Extend class notation to include the empty set.
Assertion
Ref Expression
c0

See definition df-nul 3785 for more information.

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