[quote=Dynamics]
Speaking of arguments, I asked my calculus teacher, who took engineering level math studies in college, and she said that .99999... is less than one, and that .333333... isn't equal to 1/3.
[/quote]

I figured that last one out. And that's only once you leave the realm of real numbers and start dealing with surreals, which are a step above hyperreals. Or maybe it starts at hyperreals. Which does calc deal with?