define: syllogism
All men are mortal Socrates is a man Therefore, Socrates is mortal. A syllogism (Greek: ÏÏÎ»Î»Î¿Î³Î¹ÏÎ¼ÏÏ syllogismos, conclusion, inference) is a kind of logical argument that applies deductive reasoning to arrive at a conclusion based on two or more propositions that are asserted or assumed to be true.