
Philosophy and Mathematics in the Middle Ages: An Interview with Clelia Crialesi
By Isabel Inzunza Gomez and Guillermo Ruz Troncoso
January 2025 – In this interview, Clelia Crialesi, a Marie Skłodowska-Curie Fellow, delves into her pioneering research project, MUCH, funded by the European Commission. Focusing on the philosophical and mathematical intersections of 14th-century Italy, Clelia explores themes such as quantity, abstraction, and the unknown, revealing their significance in shaping both medieval and modern thought. She also discusses her forthcoming book, Mathematics and Philosophy at the Turn of the First Millennium: Abbo of Fleury on Calculus, shedding light on the rich interplay between arithmetic, theology, and natural philosophy. From uncovering the intellectual landscape of premodern Europe to reflecting on the challenges and opportunities in her field, Clelia offers a compelling glimpse into her work and its lasting impact on the study of the history of philosophy and mathematics.
About Clelia Crialesi

Clelia V. Crialesi is a Marie Skłodowska-Curie Fellow at SPHERE-CNRS (Paris, France). Formerly, she was an FWO Research Fellow at KU Leuven (Leuven, Belgium) and a Mellon Fellow at PIMS (Toronto, Canada). Her research focuses on premodern mathematical thought, with publications ranging from Boethian number theory to Euclidean geometry in the late medieval continuum debate.
©️Isabel Inzunza Gomez & Guillermo Ruz Troncoso | “Philosophy and Mathematics in the Middle Ages”, IPM Monthly 4/1 (2025).
