Very sad to hear that! We all owe Fatima a great debt, for her dedication shaping this and other fields, for her relentless initiative, creativity and for her huge contribution to her husband's work (and life). That book is my fav, and a unique work of art. She was Italian, fluent in eight languages and highly educated. They met at the ETH in 1966, and married the same year. May she rest in peace. Federica On Mon, Apr 20, 2026, 1:14 AM Posina Venkata Rayudu <posinavrayudu@gmail.com<mailto:posinavrayudu@gmail.com>> wrote: Dear All, I am saddened to write that Madam Fatima Lawvere died. Madam Fatima Lawvere, a pedagogical revolution personified, envisioned making the then most advanced and abstract mathematics (Category Theory) comprehensible to total beginners (like me); in an intellectual tour de force, Madam Fatima Fenaroli Lawvere substantiated her vision with passion and unwavering commitment: attending Professor F. William Lawvere's lectures, asking questions (I, for one, didn't see, for example, the AND needed to define OR), and enriching with her creative contributions, all the way to the materialization of her mind-made best textbook ever written: F. William Lawvere and Stephen H. Schanuel, Conceptual Mathematics: A First Introduction to Categories which will remain a book to study---again and again---for those of us who think of mathematics as learnable-and-teachable (https://lawverearchives.com/wp-content/uploads/2025/07/1989.cambridgetalks.p... p. 4). Thanks to Madam Fatima Lawvere, working past her 90s, we have The Lawvere Archives (https://lawverearchives.com/), which, without exaggeration, will set the mathematical agenda for future generations (cf. adjoint cylinders and graphs, algebraic foundations of physics and engineering, broad objective logic, Cantorian abstraction, laws of rational passage between concepts, mathematics of cohesion, objective number theory, quality types, radically synthetic differential geometry, theory of naturality, just to name a few). Madam Fatima Lawvere joined her beloved husband Professor F. William Lawvere (09 February 1937 – 23 January 2023). Thanking you, Yours respectfully, posina You're receiving this message because you're a member of the Categories mailing list group from Macquarie University. To take part in this conversation, reply all to this message. View group files | Leave group | Learn more about Microsoft 365 Groups You're receiving this message because you're a member of the Categories mailing list group from Macquarie University. To take part in this conversation, reply all to this message. View group files<https://outlook.office365.com/groups/groupsubscription?source=EscalatedMessage&action=files&smtp=categories%40mq.edu.au&bO=true&GuestId=6bf90c14-94d1-45b7-a0b5-9dd447734d27> | Leave group<https://outlook.office365.com/groups/groupsubscription?source=EscalatedMessage&action=leave&smtp=categories%40mq.edu.au&bO=true&GuestId=6bf90c14-94d1-45b7-a0b5-9dd447734d27> | Learn more about Microsoft 365 Groups<https://aka.ms/o365g>