Apostol, T. (1974) Mathematical Analysis. 2nd Edition, Addison Wesley, Boston, Theorem 5.5.

has been cited by the following article:

• TITLE: Introducing a Function with Plural Derivatives

  AUTHORS: Changsoo Shin

  KEYWORDS: Plural Derivatives, Recursive Heaviside Step Function

  JOURNAL NAME: Journal of Applied Mathematics and Physics, Vol.4 No.3, March 21, 2016

  ABSTRACT: It is a solid truth in mathematics that the derivative of a function is unique. We want to show that there exist particular functions all of which have the same form but their derivatives are different. Even though this may seem quite novel, such function could be crucial for the purpose of describing the world such as related to mental phenomena where the logic of the current mathematics is not adequate.