|Modalities: modalities are in modal logic possibility, necessity and contingency.|
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Modalities/Hintikka: Definition Alethic modal logic/Hintikka: the logic dealing with logical modalities, i.e. logical necessity and logical possibility.
On the other hand, analytical modality (conceptual or linguistic) does not actually belong to it.
Jaakko and Merrill B. Hintikka
The Logic of Epistemology and the Epistemology of Logic Dordrecht 1989
J. Hintikka/M. B. Hintikka
Untersuchungen zu Wittgenstein Frankfurt 1996