Union
Union of the sets A and B, denoted by A ∪ B, is the set of distinct element belongs to set A or set B, or both.
Above is the Venn Diagram of A U B.
Exam...

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A Set is an unordered collection of objects, known as elements or members of the set.
An element ‘a’ belong to a set A can be written as ‘a "...

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A graph is a data structure that is defined by two components :
A node or a vertex.
An edge E or ordered pair is a connection between two nodes u,v that is identifie...

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Prerequisite – Graph Theory Basics – Set 1
A graph is a structure amounting to a set of objects in which some pairs of the objects are in some sense &#x...

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Prerequisite – Graph Theory Basics
Given an undirected graph, a matching is a set of edges, such that no two edges share the same vertex. In other words, match...

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According to Chomsky hierarchy, grammars are divided of 4 types:
Type 0 known as unrestricted grammar.
Type 1 known as context sensitive grammar.
Type 2 known as cont...

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Automata theory (also known as Theory Of Computation) is a theoretical branch of Computer Science and Mathematics, which mainly deals with the logic of computation wi...

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Prerequisite – Finite automata introduction
All programming languages can be represented as a finite automata. C, Paskal, Haskell, C++, all of them have a spec...

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Finite Automata(FA) is the simplest machine to recognize patterns.
A Finite Automata consists of the following :
Q : Finite set of states.
∑ : set of Input Sy...

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Arden’s theorem state that:
“If P and Q are two regular expressions over , and if P does not contain , then the following equation in R given by R = Q ...

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