1. Isomorphism exercises Let N{0,1,2,3,} be the set of natural numbers. I.et I={T,} be the set of boskeans, representing True and False. Let R=(,+) be the set of real numbers. Investigate whether the following sets are isomorphic. If yes, find an isomorphism. If no, explain why no isomorphism can possibly exist. 1. B and BB 2. BB and BB 3. 1313 and BE 4. 13 and N 5. N and NN