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

Syntax Definition cnei 17116
Description: Extend class notation with neighborhood relation for topologies.
Ref Expression
cnei  class  nei

See definition df-nei 17117 for more information.

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