logical necessity

Logical necessity refers to a state where a statement or proposition must be true because of its logical structure, independent of any facts or circumstances. If something is logically necessary, then it cannot be false given the rules of logic; its truth is guaranteed by reasoning alone. For example, "All bachelors are unmarried" is logically necessary because its conclusion follows inevitably from the definitions involved. This concept helps differentiate statements that are true by definition from those that are true only based on specific situations or evidence.