(uncountable) 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.
(philosophy, logic) The study of the
principles and criteria of valid inference and demonstration.
(uncountable) (mathematics) The mathematical study of
relationships between rigorously defined
concepts and of proof of statements.
(countable) (mathematics) A formal or informal
language together with a deductive system or a model-theoretic semantics.
(uncountable) Any system of thought, whether rigorous and productive or not, especially one associated with a particular person.
It's hard to
work out his system of logic.
(uncountable) The part of an electronic system that performs the boolean Logic operations, short for Logic gates or Logic circuit.
Fred is designing the Logic for the new controller.