What was most difficult?
The most difficult thing about this section was some of the new vocabulary: unit, and zero divisor. For unit, it just seems like a strange name. We have an element a that is a unit if some other number is it's reciprocal? That's sort of the intuitive definition I'm getting. And for zero divisor, we have a nonzero a where this is also a nonzero b such that their product is 0. That's not too difficult. It's still all unclear where this is leading.
Reflection
All I can say is I can't wait for Monday's lecture, to see this explained. It's usually easier to understand when you (Dr. Jenkins) explain it.
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