Modus Ponens is a fundamental rule of logic used in deductive reasoning. It states that if a conditional statement is true, and its antecedent (the "if" part) is also true, then the consequent (the "then" part) must also be true. For example, if we have the statement "If it rains, then the ground will be wet," and we know that it is indeed raining, we can conclude that the ground is wet. This logical structure can be summarized as follows: If P, then Q; P is true; therefore, Q is true. Modus Ponens is widely used in mathematics, computer science, and philosophy to draw valid conclusions from established premises.