American English

Definition of logic noun from the Oxford Advanced American Dictionary



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  1. 1[uncountable] a way of thinking or explaining something I fail to see the logic behind his argument. The two parts of the plan were governed by the same logic.
  2. 2[uncountable, singular] sensible reasons for doing something Linking the proposals in a single package did have a certain logic. a strategy based on sound commercial logic There is no logic to/in any of their claims.
  3. 3[uncountable] (philosophy) the science of thinking about or explaining the reason for something using formal methods the rules of logic
  4. 4[uncountable] (computing) a system or set of principles used in preparing a computer to perform a particular task