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  1. Dictionary
    logically
    /ˈlɒdʒɪkli/

    adverb

    • 1. according to the rules of logic or formal argument: "these suggestions are logically impossible"

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  2. en.wikipedia.org › wiki › LogicLogic - Wikipedia

    2 days ago · Logic is the study of correct reasoning. It includes both formal and informal logic. Formal logic is the study of deductively valid inferences or logical truths. It examines how conclusions follow from premises due to the structure of arguments alone, independent of their topic and content.

  3. www.britannica.com › topic › logicLogic | Definition, Types & Uses | Britannica

    Jun 20, 2024 · logic, the study of correct reasoning, especially as it involves the drawing of inferences. This article discusses the basic elements and problems of contemporary logic and provides an overview of its different fields. For treatment of the historical development of logic, see logic, history of.

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  5. en.wikipedia.org › wiki › History_of_logicHistory of logic - Wikipedia

    Jun 22, 2024 · The history of logic deals with the study of the development of the science of valid inference ( logic ). Formal logics developed in ancient times in India, China, and Greece. Greek methods, particularly Aristotelian logic (or term logic) as found in the Organon, found wide application and acceptance in Western science and ...

  6. www.stat.berkeley.edu › ~stark › SticiGuiPropositional Logic - University of California, Berkeley

    4 days ago · The propositions are equal or logically equivalent if they always have the same truth value. That is, p and q are logically equivalent if p is true whenever q is true, and vice versa, and if p is false whenever q is false, and vice versa. If p and q are logically equivalent, we write p = q . Logical Operations.

  7. www.britannica.com › topic › logicLogic - Symbols, Formalization, Notation | Britannica

    Jun 20, 2024 · Logic - Symbols, Formalization, Notation: The way in which logical concepts and their interpretations are expressed in natural languages is often very complicated. In order to reach an overview of logical truths and valid inferences, logicians have developed various streamlined notations.

  8. www.vocabulary.com › dictionary › logicalityLogicality - Definition, Meaning & Synonyms | Vocabulary.com

    Jun 16, 2024 · (logic) an attribute of a logical system that is so constituted that a contradiction arises if any proposition is introduced that cannot be derived from the axioms of the system

  9. www.britannica.com › topic › fallacyFallacy | Logic, Definition & Examples | Britannica

    Jun 6, 2024 · Fallacy, in logic, erroneous reasoning that has the appearance of soundness. In logic an argument consists of a set of statements, the premises, whose truth supposedly supports the truth of a single statement called the conclusion of the argument. An argument is deductively valid when the truth of.