Whole instantiated by collections of parts
Also known as composition (objects) · composite object
1 identifiers linking compositional object across the web's reference databases
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Mereology is the philosophical study of part-whole relationships, also called parthood relationships. As a branch of ontology, mereology examines the connections between parts and their wholes, exploring how components interact within a system. This theory has roots in ancient philosophy, with significant contributions from Plato, Aristotle, and later, medieval and Renaissance thinkers like Thomas Aquinas and John Duns Scotus. Mereology was formally axiomatized in the 20th century by Polish logician Stanisław Leśniewski, who introduced it as part of a comprehensive framework for logic and mathematics, and coined the word "mereology".