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

Syntax Definition wnel 2634
Description: Extend wff notation to include negated membership.
Ref Expression
cA  class  A
cB  class  B
Ref Expression
wnel  wff  A  e/  B

See definition df-nel 2636 for more information.

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