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  2. Intensional logic - Wikipedia

    en.wikipedia.org/wiki/Intensional_logic

    Logic is the study of proof and deduction as manifested in language (abstracting from any underlying psychological or biological processes). [1] Logic is not a closed, completed science, and presumably, it will never stop developing: the logical analysis can penetrate into varying depths of the language [2] (sentences regarded as atomic, or splitting them to predicates applied to individual ...

  3. Intension - Wikipedia

    en.wikipedia.org/wiki/Intension

    An intensional statement-form is a statement-form with at least one instance such that substituting co-extensive expressions into it does not always preserve logical value. An intensional statement is a statement that is an instance of an intensional statement-form.

  4. Extensional and intensional definitions - Wikipedia

    en.wikipedia.org/wiki/Extensional_and...

    An intensional definition may also consist of rules or sets of axioms that define a set by describing a procedure for generating all of its members. For example, an intensional definition of square number can be "any number that can be expressed as some integer multiplied by itself". The rule—"take an integer and multiply it by itself ...

  5. Masked-man fallacy - Wikipedia

    en.wikipedia.org/wiki/Masked-man_fallacy

    In philosophical logic, the masked-man fallacy (also known as the intensional fallacy or epistemic fallacy) [1] is committed when one makes an illicit use of Leibniz's law in an argument. Leibniz's law states that if A and B are the same object, then A and B are indiscernible (that is, they have all the same properties).

  6. Index of logic articles - Wikipedia

    en.wikipedia.org/wiki/Index_of_logic_articles

    Jacobus Naveros-- Jayanta Bhatta-- Jingle-jangle fallacies-- John Corcoran (logician)-- John W. Dawson, Jr-- Journal of Applied Non-Classical Logics-- Journal of Automated Reasoning-- Journal of Logic, Language and Information-- Journal of Logic and Computation-- Journal of Mathematical Logic-- Journal of Philosophical Logic-- Journal of ...

  7. Pavel Tichý - Wikipedia

    en.wikipedia.org/wiki/Pavel_Tichý

    He worked in the field of intensional logic and founded transparent intensional logic, an original theory of the logical analysis of natural languages – the theory is devoted to the problem of saying exactly what it is that we learn, know and can communicate when we come to understand what a sentence means. He spent roughly 25 years working ...

  8. Transparent intensional logic - Wikipedia

    en.wikipedia.org/wiki/Transparent_Intensional_Logic

    Transparent intensional logic (frequently abbreviated as TIL) is a logical system created by Pavel Tichý. Due to its rich procedural semantics TIL is in particular apt for the logical analysis of natural language. From the formal point of view, TIL is a hyperintensional, partial, typed lambda calculus.

  9. Intentional stance - Wikipedia

    en.wikipedia.org/wiki/Intentional_stance

    The intentional stance is a term coined by philosopher Daniel Dennett for the level of abstraction in which we view the behavior of an entity in terms of mental properties.It is part of a theory of mental content proposed by Dennett, which provides the underpinnings of his later works on free will, consciousness, folk psychology, and evolution.