Q2) Given the following propositions : A: Ahmed is unguilty S Samir is guilty - At least one of the three is guilty. - Samir can't do the crime alone. K: Khalid is guilty - If not both of Ahmed and Samir are guilty then Khalid is unguilty. Khalid can't do the crime with Samir. Write the four above propositions using A, S and K and use logical equivalences to find who is guilty and who is not. then