Normal modal logic is a foundational system in logic that incorporates rules like necessitation and distribution axioms. It enables the…
Explore logics that deviate from or expand classical logic. This includes many-valued, modal, and other non-classical systems, offering diverse approaches…
Explore logics beyond classical assumptions. This includes intuitionistic, many-valued, and modal systems, offering diverse frameworks for reasoning and computation.
A branch of modal logic exploring modes of truth beyond necessity and possibility. It encompasses deontic logic (duty/permission) and epistemic…
The principle of the necessity of identity asserts that if two objects are identical, this identity holds true across all…
Necessity signifies a proposition that holds true across all possible worlds or under any conceivable circumstance. It's a fundamental concept…
The necessitation rule in modal logic states that if a proposition is provable (a theorem), then its necessity is also…
Multi-modal logic extends classical modal logic by integrating multiple distinct types of modalities. It handles variations in necessity, possibility, knowledge,…
Modality refers to the quality of propositions that express necessity, possibility, and other related concepts. It's crucial for understanding how…
Modal operators like necessity (◻) and possibility (◊) alter a statement's truth value, indicating whether it must be true or…