Definitions for logic
ˈlɒdʒ ɪklog·ic

Princeton's WordNet(2.25 / 4 votes)Rate this definition:

1. logicnoun

   the branch of philosophy that analyzes inference

2. logicnoun

   reasoned and reasonable judgment

   "it made a certain kind of logic"

3. logicnoun

   the principles that guide reasoning within a given field or situation

   "economic logic requires it"; "by the logic of war"

4. logicnoun

   the system of operations performed by a computer that underlies the machine's representation of logical operations

5. logic, logical system, system of logicnoun

   a system of reasoning

GCIDE(5.00 / 1 vote)Rate this definition:

1. Logicnoun

   correct reasoning; as, I can't see any logic in his argument; also, sound judgment; as, the logic of surrender was uncontestable.

   Etymology: [OE. logike, F. logique, L. logica, logice, Gr. logikh` (sc. te`chnh), fr. logiko`s belonging to speaking or reason, fr. lo`gos speech, reason, le`gein to say, speak. See Legend.]

2. Logicnoun

   The path of reasoning used in any specific argument; as, his logic was irrefutable.

   Etymology: [OE. logike, F. logique, L. logica, logice, Gr. logikh` (sc. te`chnh), fr. logiko`s belonging to speaking or reason, fr. lo`gos speech, reason, le`gein to say, speak. See Legend.]

3. Logicnoun

   (Electronics, Computers) A function of an electrical circuit (called a gate) that mimics certain elementary binary logical operations on electrical signals, such as AND, OR, or NOT; as, a logic circuit; the arithmetic and logic unit.

   Etymology: [OE. logike, F. logique, L. logica, logice, Gr. logikh` (sc. te`chnh), fr. logiko`s belonging to speaking or reason, fr. lo`gos speech, reason, le`gein to say, speak. See Legend.]

Wiktionary(5.00 / 1 vote)Rate this definition:

1. logicnoun

   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.

   Etymology: From logike, from logica, from λογική, from properly feminine of λογικός, from λόγος.

2. logicnoun

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

   Etymology: From logike, from logica, from λογική, from properly feminine of λογικός, from λόγος.

3. logicnoun

   The mathematical study of relationships between rigorously defined concepts and of proof of statements.

   Etymology: From logike, from logica, from λογική, from properly feminine of λογικός, from λόγος.

4. logicnoun

   A formal or informal language together with a deductive system or a model-theoretic semantics.

   Etymology: From logike, from logica, from λογική, from properly feminine of λογικός, from λόγος.

5. logicnoun

   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.

   Etymology: From logike, from logica, from λογική, from properly feminine of λογικός, from λόγος.

6. logicnoun

   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.

   Etymology: From logike, from logica, from λογική, from properly feminine of λογικός, from λόγος.

7. logicverb

   To engage in excessive or inappropriate application of logic.

   Etymology: From logike, from logica, from λογική, from properly feminine of λογικός, from λόγος.

8. logicverb

   To apply logical reasoning to.

   Etymology: From logike, from logica, from λογική, from properly feminine of λογικός, from λόγος.

9. logicverb

   To overcome by logical argument.

   Etymology: From logike, from logica, from λογική, from properly feminine of λογικός, from λόγος.

10. logicadjective

    logical

    Etymology: From logike, from logica, from λογική, from properly feminine of λογικός, from λόγος.

Webster Dictionary(5.00 / 2 votes)Rate this definition:

1. Logicnoun

   the science or art of exact reasoning, or of pure and formal thought, or of the laws according to which the processes of pure thinking should be conducted; the science of the formation and application of general notions; the science of generalization, judgment, classification, reasoning, and systematic arrangement; correct reasoning

   Etymology: [OE. logike, F. logique, L. logica, logice, Gr. logikh` (sc. te`chnh), fr. logiko`s belonging to speaking or reason, fr. lo`gos speech, reason, le`gein to say, speak. See Legend.]

2. Logicnoun

   a treatise on logic; as, Mill's Logic

   Etymology: [OE. logike, F. logique, L. logica, logice, Gr. logikh` (sc. te`chnh), fr. logiko`s belonging to speaking or reason, fr. lo`gos speech, reason, le`gein to say, speak. See Legend.]

Freebase(2.00 / 1 vote)Rate this definition:

1. Logic

   Logic has two meanings: first, it describes the use of valid reasoning where it is used in most intellectual activities, including philosophy and science, or, second, it describes the study of modes of reasoning. It is primarily studied in the disciplines of philosophy, mathematics, semantics, and computer science. It examines general forms that arguments may take. In mathematics, it is the study of valid inferences within some formal language. Logic is also studied in argumentation theory. Logic was studied in several ancient civilizations, including India, China, Persia and Greece. In the West, logic was established as a formal discipline by Aristotle, who gave it a fundamental place in philosophy. The study of logic was part of the classical trivium, which also included grammar and rhetoric. In the East, logic was developed by Buddhists and Jainists. Logic is often divided into three parts, inductive reasoning, abductive reasoning, and deductive reasoning.

Chambers 20th Century Dictionary(0.00 / 0 votes)Rate this definition:

1. Logic

   loj′ik, n. the science and art of reasoning correctly: the science of the necessary laws of thought.—adj. Log′ical, according to the rules of logic: skilled in logic: discriminating.—ns. Logical′ity, Log′icalness.—adv. Log′ically.—n. Logic′ian, one skilled in logic.—v.i. Log′icise, to argue.—Chop logic (see Chop); Deductive logic, logic independent of probability or quantitative considerations; Formal logic, logic regarded as a distinct science, independent of matters of fact; Inductive logic, the logic of scientific reasoning; Material logic, logic which takes into account natural fact or phenomena, as distinct from formal logic; Natural logic, the natural faculty of distinguishing the true from the false: the logical doctrine applicable to natural things as opposed to the logic of faith; Pure logic, the general laws of thought. [Gr. logikē, from logos, speech.]

The Nuttall Encyclopedia(0.00 / 0 votes)Rate this definition:

1. Logic

   the science of correct thinking or of the laws which regulate thought, called also dialectics; or in the Hegelian system "the scientific exposition and development of those notions or categories which underlie all things and all being."

The Roycroft Dictionary(0.00 / 0 votes)Rate this definition:

1. logic

   An instrument used for bolstering a prejudice.

U.S. National Library of Medicine(0.00 / 0 votes)Rate this definition:

1. Logic

   The science that investigates the principles governing correct or reliable inference and deals with the canons and criteria of validity in thought and demonstration. This system of reasoning is applicable to any branch of knowledge or study. (Random House Unabridged Dictionary, 2d ed & Sippl, Computer Dictionary, 4th ed)

Editors Contribution(0.00 / 0 votes)Rate this definition:

1. logic

   The ability, act and process of to think, feel, know and understand in a step-by-step way.

   Logic is at the heart of human life and computer processing.

   Submitted by MaryC on February 11, 2020  

2. logic

   The ability, act and process to think, see, feel, know and understand the effect of a proposed or perceived action, solution or choice.

   Logic is so important within life for us all.

   Submitted by MaryC on October 22, 2020  

Suggested Resources(0.00 / 0 votes)Rate this definition:

1. logic

   Song lyrics by logic -- Explore a large variety of song lyrics performed by logic on the Lyrics.com website.

Matched Categories

1. • Common Sense
   • Computer Science
   • Philosophy
   • Principle
   • System

British National Corpus

1. Spoken Corpus Frequency

   Rank popularity for the word 'logic' in Spoken Corpus Frequency: #4046

2. Nouns Frequency

   Rank popularity for the word 'logic' in Nouns Frequency: #1654

How to pronounce logic?

1. Alex

   US English

   Daniel

   British

   Karen

   Australian

   Veena

   Indian

How to say logic in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of logic in Chaldean Numerology is: 8

2. Pythagorean Numerology

   The numerical value of logic in Pythagorean Numerology is: 1

Examples of logic in a Sentence

1. Warren Alperstein:

   I suspect that an argument grounded in common sense and logic will be made to the jury whereby the defense attorneys ask the jury,' Do you read every email you get within a day or two... without being prompted ?'.

2. Martin Tobias Lithner:

   By mistreating the source of all logic we can enforce shortcuts.

3. Michael Pasano:

   Everyone is going to learn from the Swiss decision and try to make their renewed requests fit very neatly with the logic that the Swiss found to support Figueredo going back to his country.

4. Steve Ross:

   We had the same thing happening in Germany in the 1920s with people being roughed up by the Brownshirts and they deserved it because they were Jews and Marxists and radicals and dissidents and gypsies — that was what Hitler was saying, i'm not saying Trump is Hitler, but the logic of condoning violence against those who oppose you -- you can imagine, a man who would condone it as a candidate -- what would he do as an official president?

5. Blaise Pascal:

   The heart has arguments with which the logic of mind is not aquainted.

Images & Illustrations of logic

Popularity rank by frequency of use