Austrian economics excludes the use of calculus?
I have been reading a little on it, and it seems that they don't believe in continuity, for example, among preferences.
But wouldn't that prevent the use of LIMITS, which of course are required for DERIVATIVES (a derivative is a limit), which is how many optimization problems are solved.
Obviously, you can have a limit at a point even if the function is not continuous there, but if a function has a derivative at a point, it must be continuous at that point.
So I have two questions:
(a) Is it true that Austrian economists do not believe in continuity with respect to economics?
(b) How much would this limit the use of mathematics in their economic modeling?
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