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

Syntax Definition cif 3662
Description: Extend class notation to include the conditional operator. See df-if 3663 for a description. (In older databases this was denoted "ded".)
Ref Expression
wph wff φ
cA class A
cB class B
Ref Expression
cif class if(φ, A, B)

See definition df-if 3663 for more information.

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