Meaning of WFF | Babel Free

Definitions

1. Acronym of well-formed formula.
   abbreviation, acronym, alt-of
2. Alternative letter-case form of wff; well-formed formula.
   alt-of

Equivalents

Examples

“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 […]”

“A grammatically correct⟳ expression is called a well-formed formula, or wff for short, which can be pronounced "woof." To decide⟳ whether an expression is a wff , we need⟳ to precisely define⟳ the syntax (or grammar) rules for the formation of wffs […]”

“The set⟳ of well-formed formulas (wffs) is the smallest set⟳ satisfying the following conditions: • If p is an n-ary predicate symbol (an element of Pn) and t1 ,. .., tn are terms, p(t1 ,. ..,tn) is a wff. • If p is a wff and x is a variable, (∀x)p and (∃x)p are […]”

CEFR level