noun /ˈlɒdʒɪk,ˈlɑːdʒɪk/
a) A method of human thought that involves thinking in a linear, step-by-step manner about how a problem can be solved. Logic is the basis of many principles including the scientific method.

Its hard to work out his system of logic.

b) The study of the principles and criteria of valid inference and demonstration.

Fred is designing the logic for the new controller.

See Also: logician, logical

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