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

Syntax Definition csgn 13004
Description: Extend class notation to include the Signum function.
Ref Expression
csgn  class sgn

See definition df-sgn 13005 for more information.

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