1Natural Numbers
Our introduction to mathematics starts with positive whole numbers, also known as natural numbers. We will be going through informal and formal aspects of all types of numbers. We know that natural numbers are not enough for mathematics. For formal aspects of the development and extension of number types, we need background knowledge of some topics in mathematics. Hence, we start with the introduction of these concepts.
1.1 Prerequisites
1.1.1 Set Theory
We start with definitions related to sets. First of all, we define set. The definition given here is intuitive and not a formal one. The formal definition may involve some other terms, which may in turn require the definition of those terms. So we start with set as the initial ...
