(1) u2018Inhaltu2019 stands for content, but is meant here in the sense of cognitive content or meaning rather than stuff, of intension as opposed to extension.(2) 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.(3) They provide a vehicle for the imaginative extension and intension of space beyond and within the realist scale of the city.(4) There are sentences which are neither extensional nor intensional ; for example, belief-sentences.(5) In the language of nominalism, the terms u2018blacku2019 and u2018whiteu2019 purport to have mutually exclusive intensions and should therefore have mutually exclusive extensions, which they do not.(6) Such a concern description is defined intensionally as a set of regular expressions.(7) It is made up of concepts and knowledge primitives intensionally contained in it.(8) But there is what philosophers (at least this philosopher) think of as an extensional and an intensional way of describing our perceptions.(9) Logics which attempt to display the logical properties of intensional contexts are called intensional logics.(10) Deacon would argue that initially words are acquired as indices and only later do they gain intensional properties once symbol-symbol relations are established.(11) All versions of externalism have in common that intensions don't determine extensions.