• IPA: /wɪf/, /wʊf/, /wʌf/

wff (plural wffs)

1. Acronym of well-formed formula
   • 1964, On the Occurrence of Non-deontic WFF's in Argument Forms Having Deontic WFF's as Conclusion:

     which are of the form P(S) and hence we know that we can decide its truth value if we can decide the truth Value of all d-wff's of form P(S). But if it is of the form P(S ) then it is equivalent to P(T) where T is the dans of S. But by the principle of […]

wff (plural wffs)

1. Alternative case form of wff; well-formed formula.