For my husband?s a birthday, I bring him gifts. Either it is my husband?s birthday or I work late in office. I did not bring my husband gifts today. Therefore, today I worked late.

b) Test the validity of:

a) Show that the following proposition is a tautology:

arkadaşlar bu proje ödevini prolog kodu olarak yazmam gerek ama yapamadım, daha once prolog kullanmadım, yardımcı olursanız çok minnettar kalacağıım.. saygılar

Q2 (25 points). Encrypt the message?I LOve DISCRETE? by translating the letters into numbers, applying the encryption function given below, and then translating the numbers back into letters. Additionally; find the corresponding decryption function, and apply it to the ciphertext to revert back to the original message.

f =3p+27(mod26)