Let p: the book is interesting and q: the book has pictures. The notation p ∧ q represents the statement “The book is interesting the book has pictures.” The notation p ↔ q represents the statement “The book is interesting the book has pictures.” The notation q ∨ p represents the statement “The book has pictures the book is interesting.” The notation q → p represents the statement “The book is interesting the book has pictures.”
Selection 2:if and only if