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Single Idea 13727

[from 'First-Order Modal Logic' by M Fitting/R Mendelsohn, in 4. Formal Logic / D. Modal Logic ML / 2. Tools of Modal Logic / b. Terminology of ML ]

Full Idea

In 'constant domain' semantics, the domain of each possible world is the same as every other; in 'varying domain' semantics, the domains need not coincide, or even overlap.

Gist of Idea

A 'constant' domain is the same for all worlds; 'varying' domains can be entirely separate

Source

M Fitting/R Mendelsohn (First-Order Modal Logic [1998], 4.5)

Book Reference

Fitting,M/Mendelsohn,R: 'First-Order Modal Logic' [Synthese 1998], p.93