A proposition is a statement that can be either true or false.
Propositional logic is a branch of logic that deals with statements that can be either true or false. Propositional logic is used extensively in computer science, as it provides a formal framework for reasoning about Boolean expressions and logical statements.
The union of two sets $A$ and $B$, denoted by $A \cup B$, is the set of all elements that are in $A$ or in $B$ or in both. The intersection of two sets $A$ and $B$, denoted by $A \cap B$, is the set of all elements that are in both $A$ and $B$.
Set theory is a fundamental area of discrete mathematics that deals with collections of objects, known as sets. A set is an unordered collection of unique objects, known as elements or members. Sets can be finite or infinite, and they can be used to represent a wide range of data structures, including arrays, lists, and trees.
A set is a collection of objects, denoted by $S = {a_1, a_2, ..., a_n}$, where $a_i$ are the elements of $S$.
Discrete mathematics is a branch of mathematics that deals with mathematical structures that are fundamentally discrete, meaning that they are made up of distinct, individual elements rather than continuous values. Discrete mathematics is used extensively in computer science, as it provides a rigorous framework for reasoning about computer programs, algorithms, and data structures. In this paper, we will cover the basics of discrete mathematics and proof techniques that are essential for computer science.
A graph is a pair $G = (V, E)$, where $V$ is a set of nodes and $E$ is a set of edges.
Proof techniques are used to establish the validity of mathematical statements. In computer science, proof techniques are used to verify the correctness of algorithms, data structures, and software systems.
