This book articulates and defends a novel view about fundamental reality, an alternative to the traditional opposition between monism and pluralism. Collective allism is the view that what’s metaphysically fundamental is neither the universe as a whole nor some fragments thereof, but the plurality of all entities, i.e. all entities taken collectively. Using resources from plural logic, the book systematically develops the view and argues that considerations about mereological infinitism, emergence, natural laws, and relations give it an edge over monism and pluralism. This book is therefore of great interest to both scientists and philosophers of science.

Raul Saucedo works primarily in metaphysics and related issues in philosophical logic, philosophy of language, and philosophy of science. He is Assistant Professor of Philosophy at the University of Colorado Boulder. He was previously Assistant Professor of Philosophy at Yale University and Research Fellow in the Research School of Social Sciences at the Australian National University. He received his PhD from Cornell University and studied at the National Autonomous University of Mexico (UNAM) and UC Berkeley and as an undergraduate. He was born and raised in Mexico City, Mexico.