This is very sad news. Ronnie was a huge influence on a whole generation of British category-theorists, including myself. His enthusiasm for the subject shone through any conversation one had with him, even if at times his lack of `small-talk' on any subject other than mathematics could become a little wearing. He'll be much missed! Peter Johnstone ________________________________ From: Timothy Porter <t.porter.maths@gmail.com> Sent: Saturday, December 7, 2024 6:14 PM To: Categories mailing list <categories@mq.edu.au> Subject: Death of Ronnie Brown. I have been asked by his son Marcus to inform his friends on the Categories mailing list that Ronnie Brown who was for many years professor at the University College of North Wales (later renamed the University of Bangor) died yesterday at his home in Deganwy. Please share this information with others who may have known Ronnie. Thanks, Tim Porter. 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 ________________________________ From: Timothy Porter <t.porter.maths@gmail.com> Sent: Saturday, December 7, 2024 6:14 PM To: Categories mailing list <categories@mq.edu.au> Subject: Death of Ronnie Brown. I have been asked by his son Marcus to inform his friends on the Categories mailing list that Ronnie Brown who was for many years professor at the University College of North Wales (later renamed the University of Bangor) died yesterday at his home in Deganwy. Please share this information with others who may have known Ronnie. Thanks, Tim Porter. 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/owa/categories@mq.edu.au/groupsubscription.ashx?source=EscalatedMessage&action=files&GuestId=6bf90c14-94d1-45b7-a0b5-9dd447734d27> | Leave group<https://outlook.office365.com/owa/categories@mq.edu.au/groupsubscription.ashx?source=EscalatedMessage&action=leave&GuestId=6bf90c14-94d1-45b7-a0b5-9dd447734d27> | Learn more about Microsoft 365 Groups<https://aka.ms/o365g>