Aristotle's Modal Logic

Aristotle's modal logic is a branch of philosophy that examines the concepts of necessity and possibility concerning propositions. He distinguished between different modes of truth: statements that are necessarily true (they cannot be false), contingently true (they may be true or false), or impossible (they cannot be true). For example, "All humans are mortal" is necessarily true, while "It might rain tomorrow" reflects a possibility. Aristotle's work laid the groundwork for understanding how we reason about what must be, what might be, and what cannot be, influencing both philosophy and logic throughout history.