
13 Apr
2019
13 Apr
'19
8:29 a.m.
Am 13.04.19 um 12:14 schrieb Richard O'Keefe:
I would be astonished if you had been told that a ** b ** c was defined to be a ** (b ** c) back in 1950-something,
Actually we were told, with the reasoning that (a ** b) ** c is the same as a ** (b * c), I recall that that was presented as "nothing new there so not worth defining it that way). Truth be told, that was the 1970-something for me.