👉 Tautological is a mathematical term used to describe situations where two or more statements are logically equivalent but have different meanings. In other words, if one statement is true and another statement is false, it can be concluded that both statements are tautologies. In simpler terms, a tautology is a statement that contains all the premises and conclusion in an unambiguous logical sequence. A tautological statement is valid because it always implies its own truth value (i.e., "true" or