LOGIC

noun see: legend Date: 12th century 1. a. a science that deals with the principles and criteria of validity of inference and demonstration ; the science of the formal principles of reasoning, a branch or variety of ~ , a branch of semiotic, the formal principles of a branch of knowledge, b. a particular mode of reasoning viewed as valid or faulty, relevance , propriety , interrelation or sequence of facts or events when seen as inevitable or predictable, the arrangement of circuit elements (as in a computer) needed for computation, something that forces a decision apart from or in opposition to reason , ~ian noun