\[\lim_{x \to a}f(x) = f(a) \]
Functions with the Direct Substitution Property are called continuous at a
The order of function f and Lim can be reversed.
The interval must be closed, or this IVT does not hold.
# 4. Derivative of a function
h could be larger or less than 0
Thus, we can evaluate the limit of a sequence by evaluating the limit of corresponding continuous function