
Formal Logic, Logic Terms
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Mereological essentialism
Haecceity ( pron.: / h ɛ k ˈ s iː ɪ t ɪ / ; from the Latin haecceitas , which translates as "thisness") is a term from medieval philosophy first coined by Duns Scotus which denotes the discrete qualities, properties or characteristics of a thing which make it a particular thing. Haecceity is a person or object's " thisness ". Charles Sanders Peirce later used the term as a non-descriptive reference to an individual. [ edit ] Haecceity and quiddity Haecceity may be defined in some dictionaries as simply the "essence" of a thing, or as a simple synonym for quiddity or hypokeimenon .
Haecceity
Ship of Theseus
The ship of Theseus , also known as Theseus' paradox , is a paradox that raises the question of whether an object which has had all its component parts replaced remains fundamentally the same object . The paradox is most notably recorded by Plutarch in Life of Theseus from the late 1st century. Plutarch asked whether a ship which was restored by replacing all its wooden parts, remained the same ship. The paradox had been discussed by more ancient philosophers such as Heraclitus , Socrates , and Plato prior to Plutarch's writings; and more recently by Thomas Hobbes and John Locke .Nihilism
Nihilism ( pron.: / ˈ n aɪ . ɨ l ɪ z əm / or / ˈ n iː . ɨ l ɪ z əm / ; from the Latin nihil , nothing) is the philosophical doctrine suggesting the negation of one or more putatively meaningful aspects of life . Most commonly, nihilism is presented in the form of existential nihilism , which argues that life is without objective meaning, purpose, or intrinsic value . [ 1 ] Moral nihilists assert that morality does not inherently exist, and that any established moral values are abstractly contrived. Nihilism can also take epistemological or metaphysical / ontological forms, meaning respectively that, in some aspect, knowledge is not possible, or that reality does not actually exist.Purpose
Intention is an agent 's specific purpose in performing an action or series of actions, the end or goal that is aimed at. Outcomes that are not anticipated and not foreseen are known as unintended consequences . Intentional behavior can also be just thoughtful and deliberate goal-directedness. Recent research in experimental philosophy has shown that other factors may also matter for whether or not an action is counted as intentional.Śūnyatā
" Three men make a tiger " ( Chinese : 三人成虎 ; pinyin : sān rén chéng hǔ ) is a Chinese proverb or chengyu (four-character idiom). Three men make a tiger refers to an individual's tendency to accept absurd information as long as it is repeated by enough people. It refers to the idea that if an unfounded premise or urban legend is mentioned and repeated by many individuals, the premise will be erroneously accepted as the truth. This concept is analogous to communal reinforcement or the fallacy of argumentum ad populum . [ edit ] Origin

