Philosophy Lexicon of Arguments

Modal Operators: modal operators are symbols for expressing possibility and necessity. These operators do not belong to classical logic, but fall into the field of modal logic. Their placement at the beginning or in the course of formulas determines the relative strength of statements that can be obtained from the interpretation of these formulas. See also range, stronger/weaker, modal logic, possible worlds.

Annotation: The above characterizations of concepts are neither definitions nor exhausting presentations of problems related to them. Instead, they are intended to give a short introduction to the contributions below. – Lexicon of Arguments.
Author Item    More concepts for author
Cresswell, M.J. Modal Operators   Cresswell, M.J.
Field, Hartry Modal Operators   Field, Hartry
Montague, R. Modal Operators   Montague, R.

Ed. Martin Schulz, access date 2017-09-26