>
>* this is ok
>? 10-3-2
>* typo 3 => bad result (better a syntax error !)
>? 10--2
>* Need a constraint in the grammar
>? 10-(-2)
>
Why would that be wrong? If I substract 10 minus negative two, that is the same as 10 plus 2. What do you expect, and why?
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)
