To turn the search for cliques into a problem that computers can grapple with, you need a representation of the problem that uses propositional logic. a particular method of reasoning or argumentation: the system or principles of reasoning applicable to any branch of knowledge or study. 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. ic (lŏj′ĭk) n. 1. The New Dictionary of Cultural Literacy, Third Edition This article discusses the basic elements and problems of contemporary logic and provides an overview of its different fields. This came across in the Showtime Omit the Logic documentary—in which you were a commentator—and it comes across here. A system of reasoning: Aristotle's logic. These have a logic of their own; but the dreamer has not even a crazy logic. Both logic and logistics ultimately derive from the Greek logos, meaning "reason." See more. Why Do “Left” And “Right” Mean Liberal And Conservative? All rights reserved. First recorded in 1325–75; Middle English, Dictionary.com Unabridged Send us feedback. Published by Houghton Mifflin Harcourt Publishing Company. Test Your Knowledge - and learn some interesting things along the way. b. See the full definition for logic in the English Language Learners Dictionary, Thesaurus: All synonyms and antonyms for logic, Nglish: Translation of logic for Spanish Speakers, Britannica English: Translation of logic for Arabic Speakers, Britannica.com: Encyclopedia article about logic. The branch of philosophy dealing with the principles of reasoning. They’ve developed a system of proteins that can carry out logic operations just like a computer, which helps them target specific combinations of antigens that are unique to certain cancers. Their logic: the sea-creature would come alive and drink up any remaining alcohol. To cook in water, just below boiling temperature. 1 a (1) : a science that deals with the principles and criteria of validity of inference and demonstration : the science of the formal principles of reasoning a professor of logic. All rights reserved. 'Nip it in the butt' or 'Nip it in the bud'. There was a logic to it – many of the wines were from the Pacific Northwest, principally from Oregon and Washington state. —Andrew Meola, Business Insider, 14 Oct. 2016. For retail investors, the logic behind buying shares solely based on the announcement of a stock split rests on a shaky foundation. It's not a matter of opinion, it's a science of how arguments must be formed in order to be reasonable or correct. To cook in water that begins cold and then reaches a boil. Copyright © 2011. Describe 2020 In Just One Word? Logistics follows the same pattern of other plural nouns—such as ballistics, linguistics, statistics, or physics—that represent fields of study and take either a singular or plural verb. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. “Affect” vs. “Effect”: Use The Correct Word Every Time, 7 Tips For Compiling And Creating Writing Samples That Stand Out. 12th century, in the meaning defined at sense 1a(1), Middle English logik, from Anglo-French, from Latin logica, from Greek logikē, from feminine of logikos of reason, from logos reason — more at legend. If a visitor walks in the house with wet hair, it is logical for one to assume that it is raining outside. Even if you can't be a professional chef, you can at least talk like one with this vocabulary quiz. Kim Novak's heavy legs were concealed and all logic left on the cutting room floor. Logic is a tool to develop reasonable conclusions based on a given set of data. For treatment of the historical development of logic, see logic, history of. The study of principles of reasoning, especially of the structure of propositions as distinguished from their content, and of method and validity in deductive reasoning. 2. a. She spent a long time explaining the situation, but he failed to see her, The revolution proceeded according to its own, The maps from Gateway Pundit and EveryLegalVote.com follow a similar, After the exhausting apocalypticism of the Trump presidency and the frustrating polarization of the past 20 years, there is a certain. SAT solving involves taking problems, turning them into computer-friendly statements that use propositional logic, and using computers to determine whether there’s a way to make those statements true. Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020, Collins English Dictionary - Complete & Unabridged 2012 Digital Edition In simple words, logic is “the study of correct reasoning, especially regarding making inferences.” Logic began as a philosophical term and is now used in other disciplines like math and computer science. The Popular Story About Black Friday’s Name Is A Myth. But while logic derives directly from Greek, logistics took a longer route, first passing into French as logistique, meaning "art of calculating," and then into English from there. Logic, used strictly in the singular, is a science that deals with the formal principles of reason. logic noun [U] (REASONABLE THINKING) C1 a particular way of thinking, especially one that is reasonable and based on good judgment: I fail to see the logic behind his argument. The fence begins to melt as if in a haze and the logic of clearing this vast expanse of earth and rock escapes him. Logic definition, the science that investigates the principles governing correct or reliable inference. As it was, it was to stand or fall, not by logic, but by political needs and sympathies. More formally, logic is concerned with inference—the process whereby new assertions are produced from already established ones. Accessed 28 Nov. 2020. Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Classical logic, as taught in ancient Greece and Rome, systematized rules for deduction. Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012. Logic, the study of correct reasoning, especially as it involves the drawing of inferences. the science that investigates the principles governing correct or reliable inference. Learn a new word every day. reason or sound judgment, as in utterances or actions: convincing forcefulness; inexorable truth or persuasiveness: a combining form used in the formation of adjectives corresponding to nouns ending in, 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, any particular formal system in which are defined axioms and rules of inference, the system and principles of reasoning used in a specific field of study, a particular method of argument or reasoning, force or effectiveness in argument or dispute, reasoned thought or argument, as distinguished from irrationality, the relationship and interdependence of a series of events, facts, etc, to use excessively subtle or involved logic or argument, the principles underlying the units in a computer system that perform arithmetical and logical operations. While the definition sounds simple enough, understanding logic is a little more complex. What made you want to look up logic?