Modal Logic: An Introduction Theodore Sturgeon Suitable as a text for

Suitable as a text for advanced undergraduate and graduate courses as well as a reference for professionals

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Modal Logic: An Introduction Theodore Sturgeon Suitable as a text forA textbook on modal logic, intended for readers already acquainted with the elements of formal logic, containing nearly 500 exercises. Brian F. Chellas provides a systematic introduction to the principal ideas and results in contemporary treatments of modality, including theorems on completeness and decidability. Illustrative chapters focus on deontic logic and conditionality. Modality is a rapidly expanding branch of logic, and familiarity with the