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A binary-relation frame together with a valuation of propositional variables at worlds.
The recursive forcing clauses define the semantics; they are not an additional frame axiom. Frame conditions such as reflexivity or transitivity correspond to particular modal logics.
wp-kripke-semanticsopenlogic-model-theoryEach relation below ends at this concept.
This is an authored directed relation from the source endpoint to the target endpoint.
Specialize to an endorelation on worlds, treat it as accessibility, and assign atomic propositions to worlds.
Equip an existing carrier or structured object with additional chosen data, when such compatible data exists. Use a construction junction when several independently meaningful inputs must coexist on the same carrier or interact compatibly.
wp-kripke-semanticsopenlogic-model-theoryEach relation below starts at this concept.
No direct relations are authored in this direction.