[loj-ik] /ˈlɒdʒ ɪk/
the science that investigates the principles governing correct or reliable inference.
a particular method of reasoning or argumentation:
"We were unable to follow his logic."
the system or principles of reasoning applicable to any branch of knowledge or study.
reason or sound judgment, as in utterances or actions:
"There wasn't much logic in her move."
convincing forcefulness; inexorable truth or persuasiveness:
"the irresistible logic of the facts."
Computers. logic circuit.
1325–75; Middle English logik < Latin logica, noun use of neuter plural (in ML taken as feminine singular) of Greek logikós of speech or reason. See logo-, -ic
Related forms
logicless, adjective
nonlogic, noun
4. sense, cogency.
British Dictionary definitions for logicless
logic (ˈlɒdʒɪk)
1.  formal logic deduction See also induction the branch of philosophy concerned with analysing the patterns of reasoning by which a conclusion is properly drawn from a set of premises, without reference to meaning or context
2.  formal system Compare formal language any particular formal system in which are defined axioms and rules of inference
3.  the system and principles of reasoning used in a specific field of study
4.  a particular method of argument or reasoning
5.  force or effectiveness in argument or dispute
6.  reasoned thought or argument, as distinguished from irrationality
7.  the relationship and interdependence of a series of events, facts, etc
8.  chop logic to use excessively subtle or involved logic or argument
9.  electronics, computing
 a.  See also logic circuit the principles underlying the units in a computer system that perform arithmetical and logical operations
 b.  (as modifier): a logic element
[C14: from Old French logique from Medieval Latin logica (neuter plural, treated in Medieval Latin as feminine singular), from Greek logikos concerning speech or reasoning]

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Word Origin and History for logicless
mid-14c., "branch of philosophy that treats of forms of thinking," from O.Fr. logique, from L. (ars) logica, from Gk. logike (techne) "reasoning (art)," from fem. of logikos "pertaining to speaking or reasoning," from logos "reason, idea, word" (see logos). Meaning "logical argumentation" is from c.1600.
Online Etymology Dictionary, © 2010 Douglas Harper
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logicless in Science
The study of the principles of reasoning, especially of the structure of propositions as distinguished from their content and of method and validity in deductive reasoning.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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logicless in Culture

logic definition

The branch of philosophy dealing with the principles of reasoning. Classical logic, as taught in ancient Greece and Rome, systematized rules for deduction. The modern scientific and philosophical logic of deduction has become closely allied to mathematics, especially in showing how the foundations of mathematics lie in logic.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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