ON TRUTH-FUNCTIONALITY

Benjamin Schnieder has argued that several traditional definitions of truth-functionality fail to capture a central intuition informal characterizations of the notion often capture. The intuition is that the truth-value of a sentence that employs a truth-functional operator depends upon the truth-values of the sentences upon which the operator operates. Schnieder proposes an alternative definition of truth-functionality that is designed to accommodate this intuition. we argue that one traditional definition of ʹtruth-functionalityʹ is immune from the counterexamples that Schnieder proposes and is preferable to Schniederʹs alternative.