NFE Home New Foundations Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  NFE Home  >  Th. List  >  c1st Unicode version

Syntax Definition c1st 4717
Description: Extend the definition of a class to include the first member an ordered pair function.
Ref Expression

See definition df-1st 4723 for more information.

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