Currently, I introduce isomorphisms early in the notes, but a general introduction to homomorphisms doesn't come until much later. I always manage to sneak homomorphisms in earlier by having students prove things about homomorphisms on early take-home exams.
Currently, I introduce isomorphisms early in the notes, but a general introduction to homomorphisms doesn't come until much later. I always manage to sneak homomorphisms in earlier by having students prove things about homomorphisms on early take-home exams.