May God bless you and your...
I was very sad to hear of David's death. I recall so many stimulating conversations led by him at my parent's house at 30 Wilson St Cammeray. In later life he also conversed with my son Rupert about the philosophy of mathematics and my mother Ann organised special lunches in which David and Rupert would retire to test some philosophical problem. I was very sad not to hear of his death until after his funeral. He made an outstanding contribution, always passionate and lucid, to Sydney...
Peter McCallum
May 23, 2014 | Sydney, NEW SOUTH WALES



