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

Syntax Definition cn 10005
Description: Extend class notation to include the class of positive integers.
Assertion
Ref Expression
cn  class  NN

See definition df-nn 10006 for more information.

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