In propositional logic, logical connectives are very important. They help us build and understand statements. These connectives are symbols that link simple ideas into more complicated ones. They show how different pieces of information relate to each other.

Here are the main logical connectives:

• Conjunction ($\land$): This means "and." The statement $P \land Q$ is true only if both $P$ and $Q$ are true.

• Disjunction ($\lor$): This means "or." The statement $P \lor Q$ is true if at least one of $P$ or $Q$ is true.

• Negation ($\neg$): This means "not." The statement $\neg P$ is true if $P$ is false.

• Implication ($\to$): This means "if...then." The statement $P \to Q$ is false only when $P$ is true and $Q$ is false.

• Biconditional ($\leftrightarrow$): This means "if and only if." The statement $P \leftrightarrow Q$ is true when both $P$ and $Q$ are either true or both are false.

These connectives help us make complex statements and also build truth tables. Truth tables give us a clear way to check if different statements are true or false, based on their parts. For example, a truth table for conjunction shows that the only time the whole statement is true is when both parts are true.

In short, logical connectives are basic tools in propositional logic. They help us express and analyze arguments clearly. This understanding is really important for evaluating the truth of logical reasoning.