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Definition of Modal logic
1. Noun. The logical study of necessity and possibility.
Generic synonyms: Logic
2. Noun. A system of logic whose formal properties resemble certain moral and epistemological concepts.
Generic synonyms: Formal Logic, Mathematical Logic, Symbolic Logic
Specialized synonyms: Alethic Logic, Deontic Logic, Epistemic Logic, Doxastic Logic
Specialized synonyms: Alethic Logic, Deontic Logic, Epistemic Logic, Doxastic Logic