Thomas "Tom" Stephen Hampden Leinster (born 1971) is a British mathematician, known for his work on category theory.
He also considered such generalizations in metric spaces with application in biology (measurement of biodiversity).
[4] He received the 2019 Chauvenet Prize for Rethinking Set Theory[5] (based upon an axiomatization published in 1964 by F. William Lawvere).
[6] He is a frequent author and moderator for the academic group blog n-Category Café, where topics from mathematics, science and philosophy are discussed, often from the perspective of category theory.
[8] Leinster's article called, on the basis of ethics, for mathematicians to refuse to work for intelligence agencies.