a statement that is expressed in a valid, syntactically correct, manner

English - English

Definition of a statement that is expressed in a valid, syntactically correct, manner in English English dictionary

well-formed formula

This program works correctly on all well-formed formulas but it blows up on illegal input.

Hyphenation

a state·ment that I·s expressed in a valid, syn·tac·ti·cal·ly correct, man·ner