Dear Anne, I join you in your grief to have lost one of the most prominent members of our group and someone whom I have known since the early days when I presented my thesis at an Oberwolfach meeting in 1966 then meeting the entire Sammy-gang. My condolences extend to Hanne and their grandchildren. I knew from her how brave Myles has been in face of his devastating illness. He has my profound admiration as do you. He will never be forgotten. Only today I was communicating to others my very old paper on topos theory and the independence of Souslin hypothesis which was greatly influenced by Myles having dealt beautifully with the topos proof for the independence of of CH after Paul Cohen, just as mine was influenced by one by Stanley Tennembaum. This was not the only influence that Myles has had on me. His forcing topologies led to my construction of the symmetric topos of the Lawvere distributions classifier and of course much much more. I will miss him. This is a very bad year for us category theorists. Best wishes Marta ----- Original Message ----- From: "Joyal, André" <joyal.andre@uqam.ca> To: categories@mta.ca Sent: Thursday, October 5, 2017 2:09:26 PM Subject: categories: Myles Tierney Dear collegues, A very sad news: my friend and collaborator Myles Tierney passed away this morning at home in New Jersey after a long illness. His wife Anne Bergeron was with him. He had turned 80 years old last month. I will write later about his contributions to category theory, his fields. -André PS: Anne's email address: bergeron.anne@uqam.ca [For admin and other information see: http://www.mta.ca/~cat-dist/ ]