2.1, Due January 10

Difficult:

I found it difficult to remember what "a=b(mod n)" means. As they were going through various theorems and proofs, I had to keep going back to the definition of congruent modulos. Even more difficult was the concept of the congruence classes of (mod n) and it's accompanying theorems and proofs. I will likely need to re-read section 2.1.

Reflective:

I did find it curious that when we talk about 2 sets of congruence classes, it's only a matter of disjoint vs. identical. Usually 2 sets can have some elements in common but not be the same sets, but with congruence class sets, that can't happen.