Definitions for logic
ˈlɒdʒ ɪklog·ic

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

1. logic(noun)

   the branch of philosophy that analyzes inference

2. logic(noun)

   reasoned and reasonable judgment

   "it made a certain kind of logic"

3. logic(noun)

   the principles that guide reasoning within a given field or situation

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

4. logic(noun)

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

5. logic, logical system, system of logic(noun)

   a system of reasoning

GCIDE(5.00 / 1 vote)Rate this definition:

1. Logic(n.)

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

2. Logic(n.)

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

3. Logic(n.)

   (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.

Origin: [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. logic(Noun)

   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.

2. logic(Noun)

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

3. logic(Noun)

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

4. logic(Noun)

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

5. logic(Noun)

   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.

6. logic(Noun)

   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.

7. logic(Verb)

   To engage in excessive or inappropriate application of logic.

8. logic(Verb)

   To apply logical reasoning to.

9. logic(Verb)

   To overcome by logical argument.

10. logic(Adjective)

    logical

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

Webster Dictionary(5.00 / 1 vote)Rate this definition:

1. Logic(noun)

   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

2. Logic(noun)

   a treatise on logic; as, Mill's Logic

Origin: [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)

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.

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. Gloria Steinem:

   Logic is in the eye of the logician.

2. Pierre Moscovici:

   We need more logic and less ideology.

3. Bev Keevill:

   The logic of human intelligence is absurd

4. Oliver Wendell Holmes Jr.:

   A page of history is worth a pound of logic.

5. Laurence J. Peter:

   Against logic there is no armor like ignorance.

Images & Illustrations of logic

Popularity rank by frequency of use