He also served as the 55th President of the London Mathematical Society from 1970 to 1972 and was honoured with the award of the London Mathematical Society 's De Morgan Medal in 1977.
Siya rin ay nagsilbi bilang ang ika-55 Presidente ng London matematiko Society 1970-1972 at noon ay pinarangalan sa award ng London matematiko Society 's Mula Morgan medalya sa 1977.