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Fischer's first sole-authored monograph was Modal Justification via Theories, [5] in which he defends a "Theory-Based Epistemology of Modality". According to this account, agents can have a justified belief in modal claims about certain kinds of "extraordinary" matters (e.g., philosophical issues) only if the claim follows from a theory in which they have a justified belief.
Epistemic modal logic is a subfield of modal logic that is concerned with reasoning about knowledge.While epistemology has a long philosophical tradition dating back to Ancient Greece, epistemic logic is a much more recent development with applications in many fields, including philosophy, theoretical computer science, artificial intelligence, economics, and linguistics.
Errol Mark Morris (born February 5, 1948) is an American film director known for documentaries that interrogate the epistemology of their subjects, and the invention of the Interrotron. In 2003, his The Fog of War: Eleven Lessons from the Life of Robert S. McNamara won the Academy Award for Best Documentary Feature . [ 1 ]
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The mathematical structure of modal logic, namely Boolean algebras augmented with unary operations (often called modal algebras), began to emerge with J. C. C. McKinsey's 1941 proof that S2 and S4 are decidable, [39] and reached full flower in the work of Alfred Tarski and his student Bjarni Jónsson (Jónsson and Tarski 1951
The term goes back to Leibniz's theory of possible worlds, [2] used to analyse necessity, possibility, and similar modal notions.In short, the actual world is regarded as merely one among an infinite set of logically possible worlds, some "nearer" to the actual world and some more remote.
Epistemic modality is a sub-type of linguistic modality that encompasses knowledge, belief, or credence in a proposition. Epistemic modality is exemplified by the English modals may, might, must. However, it occurs cross-linguistically, encoded in a wide variety of lexical items and grammatical structures.
W. V. Quine challenged traditional epistemology with his philosophy of naturalised epistemology. Epistemology is commonly defined as the "theory of knowledge". In this sense, it investigates the nature of knowledge and how far it extends, but epistemologists also investigate other concepts such as justification, understanding and rationality. [20]