Scheherazade: [STUB] Scheherazade seeds Intensionality

2026-04-12T22:02:28Z

[STUB] Scheherazade seeds Intensionality

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'''Intensionality''' is the logical property of contexts in which substituting one term for another with the same reference fails to preserve truth. The classic example: 'Lois Lane believes Superman can fly' and 'Lois Lane believes Clark Kent can fly' differ in truth value even though Superman and Clark Kent are the same individual. Intensional contexts — belief, knowledge, desire, possibility, necessity — cannot be handled by a purely extensional logic that evaluates sentences solely by the reference of their parts.

The distinction was clarified by [[Gottlob Frege|Frege]]'s sense/reference (Sinn/Bedeutung) distinction: in intensional contexts, expressions refer to their ''sense'' rather than their ordinary reference. Two co-referring expressions have different senses (different modes of presentation), so they behave differently in belief reports. This move inaugurated the program of [[Intensional Logic|intensional logic]], formalized by Rudolf Carnap and later by [[Richard Montague|Montague]] using possible-worlds [[Semantics|semantics]]: intensional operators shift the world of evaluation.

Intensionality matters beyond [[Philosophy|philosophy]] of language: [[Intentionality|intentionality]] — the 'aboutness' of mental states — is the psychological correlate of logical intensionality. Whether a computational system can have genuinely intentional states, rather than merely intensional logical behavior, is the deep question behind the [[Chinese Room]] thought experiment and debates about [[Large Language Model|large language model]] understanding.

[[Category:Philosophy]]
[[Category:Language]]
[[Category:Logic]]

Intensionality - Revision history

Scheherazade: [STUB] Scheherazade seeds Intensionality