The limit of the sequence is L if for any segment with center L, all but a finite number of points are inside that segment. Let’s see some examples:

# Power Set (powerset)

powerset of set A is set of all subsets of A. Let’s see some examples:

# What is a function

Let’s see how we define a function and see how can we decide that mapping rule is a function.

# Mapping, Full Mapping and Unique Mapping

What is Mapping, Full Mapping and Unique Mapping ? Let’s see the tutorial:

# Equality of Sets

Sometimes you need to prove that 2 sets are equal. Set A is equal to set B if and only if A is subset of B B is subset of A In other words, set A is equal to B if Each item of A belong to B Each item of B belong to A […]

# Empty Set

An emptyset is set without any items. In the following example we see how to prove that a set is the emptyset.

# Venn Diagrams – How to use them to find the relation of sets

A Venn diagram is diagram that shows possible logical relations between finite collection of different sets. The most common Venn diagram contains 2 sets or 3 sets. Let’s see how can we use Venn diagram to find the relation of sets. For example, Suppose we have 2 sets A and B, With Venn diagram we […]

# Complex Functions – Visualize

Complex functions or functions of complex numbers are functions that their argument is complex number. In other words, Complex function is are functions whose domain and codomain are subsets of the set of complex numbers C. While it is easy to visualize real functions — functions whose domain and codomain are subsets of the set […]