On Thu, Apr 04, 2013 at 06:29:51PM -0400, Albert Y. C. Lai wrote: > You may think you know what's wrong, but you don't actually know > until you know how to clarify to the beginners. Note: harping on the > word "any" does not clarify, for the beginners exactly say this: > > "Yeah, t can be *any* type, therefore *I* am making it Char. Isn't > that what *any* means?" > > The same reasoning happens in highschool and college math classes: > > Teacher: prove (t+2)^2 = t^2 + 4t + 4 > Student: plug t=0. 2 = 2. works. > Teacher: that's wrong, <blah blah> *any* <blah blah> > Student: Yeah, t can be *any* number, therefore *I* am making it 0. > Isn't that what *any* means?
"any" is very ambiguous. Doesn't the problem go away if you replace it with "all"? _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
