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  2. Categorical proposition - Wikipedia

    en.wikipedia.org/wiki/Categorical_proposition

    The study of arguments using categorical statements (i.e., syllogisms) forms an important branch of deductive reasoning that began with the Ancient Greeks. The Ancient Greeks such as Aristotle identified four primary distinct types of categorical proposition and gave them standard forms (now often called A, E, I, and O).

  3. Fallacy of four terms - Wikipedia

    en.wikipedia.org/wiki/Fallacy_of_four_terms

    Types of syllogism to which it applies include statistical syllogism, hypothetical syllogism, and categorical syllogism, all of which must have exactly three terms. Because it applies to the argument's form, as opposed to the argument's content, it is classified as a formal fallacy.

  4. The False Subtlety of the Four Syllogistic Figures - Wikipedia

    en.wikipedia.org/wiki/The_False_Subtlety_of_the...

    Kant disagreed because, he claimed, only categorical judgments are so defined. Hypothetical and disjunctive judgments are a relation between two judgments. In his footnote, Kant asserted that the lengthy and detailed doctrine of the four syllogistic figures concerned only categorical syllogisms or inferences.

  5. Glossary of logic - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_logic

    categorical A theory is categorical if all its models are isomorphic, meaning they describe the same mathematical structures in different ways. categorical logic A branch of logic that studies the categorization of objects and the logical foundations of categories, often using the framework of category theory. categorical proposition

  6. Prior Analytics - Wikipedia

    en.wikipedia.org/wiki/Prior_Analytics

    At present, syllogism is used exclusively as the method used to reach a conclusion closely resembling the "syllogisms" of traditional logic texts: two premises followed by a conclusion each of which is a categorical sentence containing all together three terms, two extremes which appear in the conclusion and one middle term which appears in ...

  7. Syllogism - Wikipedia

    en.wikipedia.org/wiki/Syllogism

    A syllogism (Ancient Greek: συλλογισμός, syllogismos, 'conclusion, inference') is a kind of logical argument that applies deductive reasoning to arrive at a conclusion based on two propositions that are asserted or assumed to be true.

  8. Categorical - Wikipedia

    en.wikipedia.org/wiki/Categorical

    Categorical distribution, a probability distribution; Categorical logic, a branch of category theory within mathematics with notable connections to theoretical computer science; Categorical syllogism, a kind of logical argument; Categorical proposition, a part of deductive reasoning; Categorization; Categorical perception; Category theory in ...

  9. Sum of Logic - Wikipedia

    en.wikipedia.org/wiki/Sum_of_Logic

    In Part III, Ockham deals with the definition and division of consequences, and provides a treatment of Aristotle's Topical rules. [1] According to Ockham a consequence is a conditional proposition, composed of two categorical propositions by the terms 'if' and 'then'.