Tautologija
Tautologija is a term used in logic and linguistics to describe a statement that is true by necessity or by virtue of its logical form. In logic, a tautology is a formula that is true in every possible interpretation. This means that no matter what the truth values of its components are, the statement as a whole will always be true. A classic example is "It is raining or it is not raining." Regardless of whether it is actually raining, the statement remains true.
In everyday language, tautology can sometimes refer to redundancy or unnecessary repetition of meaning. For instance,
The concept of tautology is crucial in propositional logic, where complex statements can be analyzed to determine