 Hi, and welcome to our session. Let us discuss the following question. The question says, write the negation of the calling statements. Second statement is, all cats scratch. Before solving this question, we should know that what is meant by a negation of a statement. The denial of a statement is called the negation of a statement. For example, if the statement is, u deli is a city, then its negation will be, u deli is not a city, it is called that u deli is a city, or it is not the case that u deli is a city. So, if we form the negation of a statement by using the phrases, it is not the case, it is called that of just writing not in the statement. So, in this question, we will form the negation of this statement by using these phrases. So, keeping this in mind, let us now begin with the solution. Now, the given statement is, all cats scratch. The negation of the statement, it is false but can be rewritten as not scratch. So, this concludes the session. Bye and take care.