Página inicial > Termos e noções > intensão

intensão

quinta-feira 25 de janeiro de 2024

  

Intensional entities are such things as concepts, propositions and properties. What makes them ‘intensional’ is that they violate the principle of extensionality; the principle that equivalence implies identity. For example, the concept of being a (well-formed) creature with a kidney and the concept of being a (well-formed) creature with a heart are equivalent in so far as they apply to the same things, but they are different concepts. Likewise, although the proposition that creatures with hiclneys have kidneys and the proposition that [452] creatures with hearts have kidneys are equivalent (both are true), they are not identical. Intensional entities are contrasted with extensional entities such as sets, which do satisfy the principle of extension-ality. For example, the set of creatures with kidneys and the set oi creatures with hearts are equivalent in so far as they have the same members and, accordingly, are identical. By this standard criterion, each of the following philosophically important types of entity is intensional: qualities, attributes, properties, relations, conditions, states, concepts, ideas, notions, propositions and thoughts. [SREP]


LÉXICO: intensão e afins