Metaphysics is a primary subject area in philosophy which investigates the nature, constitution, and structure of reality. It also deals with notions such as causation, time, modality (necessity and possibility), particulars and universals, and the relation of mind to body.
Causality
Works in philosophy dealing with the concept of causality: Cause and Effect relations, either classical or modern.
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Free Will and Determinism
Sites and papers addressing questions of determinism and/or free will and their implications.
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Metaphysicians
Philosophers who are widely viewed as metaphysicians.
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Mind
Works related to the theory of mind or consciousness.
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Modality
Modailty deals with what is necessary and what is possible; e.g., a necessary truth is a proposition that could not have been false, a necessary existent is an entity that could not have failed to exist, etc.
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Ontology
Ontology is defined as the branch of metaphysics concerned with the nature relations of being or existence.
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Process
Process metaphysics as developed by Alfred North Whitehead, and other philosophers.
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Space and Time
Works dealing with the concepts of space and time.
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