MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  w3a Structured version   Unicode version
Syntax Definition w3a 971
Description: Extend wff definition to include 3-way conjunction ('and').
Hypotheses
Ref Expression
wph wff ph
wps wff ps
wch wff ch
Assertion
Ref Expression
w3a wff ( ph /\ ps /\ ch )
See definition df-3an 973 for more information.
Colors of variables: wff setvar class
  Copyright terms: Public domain W3C validator