|Intensions: intensions are reference objects resulting from a linguistic description, in contrast to the material objects (extensions) that may differ therefrom, whether due to inaccuracies, or by the use of indexical expressions. Examples of intensions are “the oldest person in the room”, “the winner”, “John's favorite quote”, “the one who violates the speed limit”. See also morning star/evening star, extensionality, extension.|
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Intension / extension / Stechow: an expression has various extensions in different situations / worlds , but always the same intension - "Def Int (A) = [[a]] - ((s) intension of an expression = its meaning - Def Ext (a) = Int (a) (s) = [[a]] (s): the extension is the intension in a situation - Def Int (a) = ls.Exts (a) = [[a]] (abstraction).
|A. von Stechow
I Arnim von Stechow Schritte zur Satzsemantik