👉 Negation is a logical operation that reverses the truth value of an expression. It involves replacing the original expression with its opposite, or in other words, it changes the meaning of the expression by negating it. For example: - If I have a book and I give it to my friend, then my friend will not receive the book. - If you are happy, then I am also happy. Negation is used extensively in logical operations and logic puzzles. It helps us understand the truth
