Which of the following is incorrect?

Concept: Truth and falsity are semantic properties of propositions—the declarative contents that can be evaluated as true or false.

Validity and invalidity are inferential properties of arguments—the premise–conclusion structures assessed by whether the conclusion follows from the premises.

Application: The statement ‘Truth is an attribute of propositions’ assigns a semantic status to a proposition. The statements ‘Validity is an attribute of an argument’ and ‘Invalidity is an attribute of an argument’ assign inferential statuses to arguments. The statement ‘Falsity is an attribute of an argument’ assigns a semantic truth-value status to an argument, although that status belongs to propositions.

Cross-check / contrast: The terminology remains consistent when each statement is classified by the kind of object it evaluates.

• Truth concerns the truth value of a proposition.

• Validity concerns the inferential form of an argument.

• Invalidity concerns failure of an argument to preserve the required inference.

• Falsity concerns the truth value of a proposition, not the validity status of an argument.

Result: Falsity is an attribute of an argument is the incorrect statement.