A statement is a sentence that has a truth value, either true or false. Several types of sentences are not statements – questions and commands, for instance – because they do not have truth values. Another type of sentence that is not a statement can be called nonsense.

Nonsense sentences are not statements for the same reason as questions and commands; they cannot be said to be true or false. There are two types of nonsense sentences that we usually encounter in studies of logic. Continue reading Everything I say is a lie →