If a function f(x) is differentiable, its derivative f'(x) is continuous on at least a dense set. This essentially follows from a nice theorem that the pointwise limit of a sequence of continuous functions is continuous on a dense set. #math #calculus https://t.co/5u3thEuAX8
— Sam Walters ☕️ (@SamuelGWalters)
Jun 18, 2021
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