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

Syntax Definition csgn 13531
Description: Extend class notation to include the Signum function.
Assertion
Ref Expression
csgn class sgn

See definition df-sgn 13532 for more information.

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