First-Semester Abstract Algebra
SKU: 62247373032

First-Semester Abstract Algebra

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Description

First-Semester Abstract AlgebraThis is a textbook for a first semester abstract algebra course. Our focus in this book is the study of algebraic structures called 'groups.' We will explore rigorous mathematical notions of similarity and difference by introducing the concept of isomorphism, and readers will gain exposure to mathematical proofs and see plenty of specific examples demonstrating more general ideas. Instructors may request solutions to exercises (as a PDF) by writing

This is a textbook for a first-semester abstract algebra course. Our focus in this book is the study of algebraic structures called 'groups.' We will explore rigorous mathematical notions of similarity and difference by introducing the concept of isomorphism, and readers will gain exposure to mathematical proofs and see plenty of specific examples demonstrating more general ideas.

Instructors may request solutions to exercises (as a PDF) by writing the author at [email protected].

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SKU: 62247373032

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Miyari
Draper, US
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Fabric shaver works fine but the shield gets in the way, and the included lint roller is terrible
Color: Sage, Size: Large, Color: Sage, Size: Large
I ordered this to replace an older, smaller fabric shaver that still worked fairly well but had an extremely annoying battery compartment that would slide open during use. I do not have that issue at all with this one. In fact, the compartment is almost a little too secure, as it can be difficult to open and I sometimes make a mess when emptying it, but that is likely just something I need to get used to. The shaver itself works well enough overall, but I do think the fabric shield should be adjustable to sit closer to the blades. You can rotate it to change the position, but it does not get close enough to the fabric to work effectively without applying extra pressure. Once I figured out how much pressure is needed, it performed consistently, and I am generally satisfied with the results. I also prefer this handle style over the electric razor style shavers, so the grip and overall shape worked well for me. The included lint roller, however, is awful. Mine arrived noticeably warped and looked almost like it had water damage, even though it was fully sealed in plastic. I am not sure what caused that, but it was barely usable out of the box, so it did not feel like a major loss. The adhesive sheets are extremely thin and feel more like slick, lightly sticky wax paper rather than the thicker paper style sheets I normally use. The perforation is also poorly designed, which makes removing used sheets frustrating. The sheets kept peeling incorrectly until I realized you have to tear them straight across horizontally, similar to separating toilet paper. Even after figuring that out, it was still annoying to deal with. To make matters worse, the handle started cracking almost immediately once I applied enough pressure to actually roll it across fabric. At that point, it was effectively unusable.aaaAAA I mainly ordered this bundle for the large fabric shaver, which I didn't see sold separately on Amazon. I think $14.99 is a reasonable price for this type of shaver, but the cost could likely be lower if they did not include the low quality lint roller.
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