n. The formation of a belief or opinion, not as directly observed, but as constrained by observations made of other matters or by beliefs already adopted; the system of propositions or judgments connected together by such an act in a syllogism—namely, the premises, or the judgment or judgments which act as causes, and the conclusion, or the judgment which results as an effect; also, the belief so produced.n. Reasoning from effect to cause; reasoning from signs; conjecture from premises or criteria; hypothesis.