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

Syntax Definition wif 1006
Description: Extend class notation to include the conditional operator for propositions.
Ref Expression
wph wff 𝜑
wps wff 𝜓
wch wff 𝜒
Ref Expression
wif wff if-(𝜑, 𝜓, 𝜒)

See definition df-ifp 1007 for more information.

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