The theory of continuous and discontinuous differentiation shows how a continuous function may be transformed into a discrete function, such that each derivative of the function is a differentiable function, and the derivative of a differentiable function is a discrete function. In a sense, these functions are the functions of a single variable.

The definition of the continuous differentiation method as used in this article is in terms of the function, and there is no reference to discrete differentiation.

Differentiation of functions of one variable is often called derivative by substitution, and there are several reasons for doing so. The first is that it is a little easier to explain what is happening, even if the mathematical form is not the same. The second reason is that when dealing with functions of one variable the derivative by substitution can be simplified and therefore make more sense. The derivative by substitution is also called the differential of the derivative by integration, because it gives the derivative of the derivative by integration.

A series is said to be successive if it follows the same sequence of values:

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z .

The sequence A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z is repeated four times. In the same way the sequence P, Q, R, S, T, U, V, W, X, Y, Z is repeated four times.

The sequence P, Q, R, S, T, U, V, W, X, Y, Z is repeated five times. In the same way the sequence P, Q, R, S, T, U, V, W, X, Y

**Read more about – successive differentiation**

The term “progression” may refer to the process by which the molecules of a system evolve towards more complex shapes. It may refer to the process by which an individual element becomes more and more distinct, as opposed to the individual parts of a system which remain more and more similar to each other, and the process which creates the whole.

As a further example of a process of successive differentiation of an individual element of a system, consider the following:

Element A and B

The first step towards the formation of element B, was the formation of B itself.

The second step towards the formation of element B, was the creation of A and B.

The third step towards the formation of element B, was the emergence of A and B.

The first step towards the formation of element B, was the formation of B itself.