Modal Logic is a type of formal logic that extends classical logic to include modalities, which express concepts like necessity and possibility. It allows for reasoning about what could be true or what must be true, making it a powerful tool in philosophy, computer science, and linguistics. In Modal Logic, statements can be qualified with modal operators such as ◇ (possibly) and □ (necessarily). This framework helps in analyzing various philosophical arguments and understanding the nature of propositions in different contexts, such as in Kripke semantics, which provides a way to interpret modal statements through possible worlds.