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

Syntax Definition cxr 9952
Description: The set of extended reals (includes plus and minus infinity).
Ref Expression
cxr class *

See definition df-xr 9957 for more information.

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