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...cal tautology should not be [[confused]] with a tautology in propositional logic, which by the precepts of empiricism is not falsifiable.[https://en.wikiped [[Category: Logic]]

...ient_Greek_Philosophy ancient Greek philosophy], making contributions to [[logic]], metaphysics, [[mathematics]], [[physics]], [[biology]], botany, [[ethics ...tional logic] and [https://en.wikipedia.org/wiki/Predicate_logic predicate logic] 2000 years later.

*1: a [[formula]], [[proposition]], or [[statement]] in [[mathematics]] or [[logic]] deduced or to be deduced from other formulas or propositions ...using, for example, [https://en.wikipedia.org/wiki/Propositional_calculus propositional calculus], theorems are often expressed in a natural language such as [[Eng

...y]], [[ethics]] and [[aesthetics]] (which together comprise [[axiology]]). Logic is sometimes included as another main branch of philosophy, sometimes as a ...with [[modal qualifier]]s like "possibly" and "necessarily", or [[temporal logic]], which deals with the logical relationships established by the ''[[tense]

...s (see quot. 1965); a set of basic truth tables for a particular system of logic (see quot. 1973). Freq. attrib. ...or classes or statements, as appropriate); = propositional function n. at PROPOSITIONAL adj. Special uses. Also (esp. in predicate calculus): a quantifier-free par

...sed as a technical term to single out a particular type of mental state or propositional attitude. Intuitions are distinguished from [[beliefs]], since we can hold ...at is, intuition that is not empirical (''Prolegomena, p.7''). Intuitistic logic was devised by Arend Heyting to accommodate this position (and has been ado

'''Logic''' (from [[Ancient Greek|Classical Greek]] λόγος [[logos]]; meaning wo ...reasoning using [[probability]] and to arguments involving [[causality]]. Logic is also commonly used today in [[argumentation theory]]. J. Robert Cox and

...m [[Kant]], and refined in parallel with the early development of symbolic logic by [[Boole]], [[Augustus De Morgan|De Morgan]], and Peirce himself to addre ...ents to implicate arbiters in styles of [[rhetoric]], as contrasted with [[logic]].

:11. [[Logic]]. The direction or application of the mind to an object; a conception form ...1193-1280) Metaph. I; I, 1 (Opp. ed. Jammy, Lugd. 1651, III. 3/1) Scientiæ logicæ non considerant ens et partem entis aliquam, sed intentiones secundas cir

...ists have proposed that the mind contains such mental representations as [[Logic|logical]] propositions, rules, [[concepts]], images, and analogies, and tha ===Formal logic===

...o abandon futile attempts to understand the nature of the universe through logic. ...] -- [[Vaisesika]] -- [[Vedanta]] -- [[Bhakti]] -- [[Carvaka]] -- [[Indian logic]]''

...], [[kinesthetic]], [[Affection|affective]], [[Music|musical]], spatial, [[logic]]al-[[Mathematics|mathematical]], [[karma|karmic]], etc. One can be highly ...wn thoughts to myself. So here the validity claim is not so much objective propositional truth, or subjective truthfulness, but ''intersubjective fit''. This cultur