(September 5, 2018 at 1:23 am)Minimalist Wrote: For once we agree. "Proof" is a math term and I always hated math.
I had a proving cannon once upon a time. The armories had to check the quality of gunpowder they received. To do this they put a quantity in a small cannon (a mortar actually) and lit it. Their practiced eye determined if it was up to snuff. The powder that passed the test was branded "proofed".