Definition of intension in English:
1 Logic The internal content of a concept. Often contrasted with extension (sense 5).
- All versions of externalism have in common that intensions don't determine extensions.
- In the language of nominalism, the terms ‘black’ and ‘white’ purport to have mutually exclusive intensions and should therefore have mutually exclusive extensions, which they do not.
- On the other hand, two sentences have the same intension if they are logically equivalent, i.e., their equivalence is due to the semantic rules of the language.
- Example sentences
- Logics which attempt to display the logical properties of intensional contexts are called intensional logics.
- But there is what philosophers (at least this philosopher) think of as an extensional and an intensional way of describing our perceptions.
- There are sentences which are neither extensional nor intensional; for example, belief-sentences.
Definition of intension in:
- British & World English dictionary
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