English [ edit ]
Alternative forms [ edit ]
Etymology [ edit ]
Old French , from logike Latin , from logica Ancient Greek λογική ( logikḗ, “ logic ” ), from properly feminine of λογικός ( logikós, “ of or pertaining to speech or reason or reasoning, rational, reasonable ” ), from λόγος ( lógos, “ speech, reason ” ).
Pronunciation [ edit ]
Adjective [ edit ]
logic ( , countable and uncountable plural ) logics
( 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.
2001, Mark Sainsbury, Logical Forms — An Introduction to Philosophical Logic, Second Edition, Blackwell Publishing, p. 9
An old tradition has it that there are two branches of
logic: deductive logic and inductive logic. More recently, the differences between these disciplines have become so marked that most people nowadays use " logic" to mean deductive logic, reserving terms like "confirmation theory" for at least some of what used to be called inductive logic. I shall follow the more recent practice, and shall construe "philosophy of logic" as "philosophy of deductive logic".
( 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 a system (usually electronic) that performs the boolean logic operations, short for logic gates or logic circuit.
Fred is designing the logic for the new controller.
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Related terms [ edit ]
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Translations [ edit ]
formal or informal language
any system of thought, irrespective of its rigor or productiveness
part of an electronic system that performs the boolean logic operations
logic ( third-person singular simple present , logics present participle , logicking simple past and past participle ) logicked
( intransitive , pejorative ) To engage in excessive or inappropriate application of logic.
1884, Orestes Augustus Brownson, Controversy, page 21:
Nay, is not the author himself " logicking" against logic, from the beginning of his book to the end ?
( transitive ) To apply logical reasoning to.
2010, James Ellroy, Blood's a Rover, page 90:
He logicked that one out. He snuck into Haiti and scored herbs to rev him and calm him.
( transitive ) To overcome by logical argument.
2010, Jade Lee, Wicked Surrender:
If things had gone as usual this night, if Kit had not logicked her into agreement, then she probably would have opened the door tonight.
Further reading [ edit ]