Jean Buridan

Jean Buridan was a 14th-century French philosopher and logician whose work shaped medieval logic and natural philosophy, especially through his account of impetus.

Scholasticism: A medieval intellectual tradition that used systematic reasoning to examine philosophical and theological questions. Buridan worked within its university culture of disputation and commentary.
Impetus theory: A medieval account in which a mover gives a body an impressed motive force that sustains its motion. Buridan’s distinctive physics developed this explanation of continuing motion.
William of Ockham: An English Franciscan philosopher and theologian known for nominalism and arguments about knowledge and language. Ockham and Buridan represent influential, distinct approaches to late medieval philosophy.
Obligationes: A medieval disputation genre in which participants reason under stipulated assumptions and conversational rules. Buridan wrote influential works exploring how such structured debates proceed.
Thomas Aquinas: A 13th-century Italian Dominican philosopher and theologian who integrated Aristotelian thought with Christian theology. Aquinas’s account of motion provides an earlier scholastic alternative to Buridan’s impetus explanation.
Aristotelian physics: A theory of nature explaining motion through natural places, elements, and causes. Buridan revised inherited accounts of motion while engaging Aristotle’s texts.
Projectile motion: The motion of an object launched into the air and then acted on by external forces. Buridan used projectiles to challenge the claim that air must continuously move them.
Albert of Saxony: A 14th-century German philosopher and logician associated with the University of Paris and later Vienna. He carried Parisian traditions of logic and natural philosophy into Central Europe.
Sophismata: Medieval exercises analyzing difficult or paradoxical sentences through logical and linguistic distinctions. Buridan’s sophismata apply fine-grained reasoning to ambiguity and self-reference.
Galileo Galilei: An Italian astronomer and physicist whose experiments and mathematical analyses helped establish modern physics. Later histories of mechanics compare Galileo’s motion concepts with medieval impetus theories.

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