Recent content by ppd

Thank you for your response. I appreciate your help in thinking about this problem.

Homework Statement (Fraleigh's Algebra, 2003, p. 36) There are 16 possible binary structures on the set {a, b} of two elements. How many nonisomorphic (that is, structurally different) structures are there among these 16? Phrased more precisely in terms of the isomorphism equivalence...

Thanks so much! This was really puzzling me too.