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Description
Category Theory in Context"The book is extremely pleasant to read, with masterfully crafted exercises and examples that create a beautiful and unique thread of presentation leading the reader safely into the wonderfully rich, expressive, and powerful theory of categories." The Math Association Category theory has provided the foundations for many of the twentieth century's greatest advances in pure mathematics. This concise, original text for a one semester course on the
"The book is extremely pleasant to read, with masterfully crafted exercises and examples that create a beautiful and unique thread of presentation leading the reader safely into the wonderfully rich, expressive, and powerful theory of categories." -- The Math AssociationCategory theory has provided the foundations for many of the twentieth century's greatest advances in pure mathematics. This concise, original text for a one-semester course on the subject is derived from courses that author Emily Riehl taught at Harvard and Johns Hopkins Universities. The treatment introduces the essential concepts of category theory: categories, functors, natural transformations, the Yoneda lemma, limits and colimits, adjunctions, monads, and other topics.
Suitable for advanced undergraduates and graduate students in mathematics, the text provides tools for understanding and attacking difficult problems in algebra, number theory, algebraic geometry, and algebraic topology. Drawing upon a broad range of mathematical examples from the categorical perspective, the author illustrates how the concepts and constructions of category theory arise from and illuminate more basic mathematical ideas. Prerequisites are limited to familiarity with some basic set theory and logic.
Binding Type: Paperback
Publisher: Dover Publications
Published: 11/16/2016
ISBN: 9780486809038
Pages: 272
Weight: 0.85lbs
Size: 8.90h x 5.90w x 0.60d
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4.2 ★★★★★
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Product Reviews
★★★★★ 3
Weirdly textured
Size: King, Color: Dark Gray
I have bought and loved jersey sheets in the past, that have all been as soft as a well worn cotton t-shirt. These arent soft. They have the stretch of jersey, but not the soft smooth texture that they should have. Even after washing a few times these are one of my least favorite sheets I've ever bought on Amazon.
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Reviewed in the United States on May 30, 2026
★★★★★ 5
Nice feel and color - Heather Grey
Color: Heather Grey(flat Sheet Only), Size: Twin
Wonderful soft cotton color exactly like the picture. Will buy this again.
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Reviewed in the United States on April 12, 2026
★★★★★ 5
Top sheet changes everythang
Color: Solid Off White(flat Sheet Only), Size: Twin
There are a lot of negative reviews due to the price for what is only a top sheet. It is a bit pricy, though I sleep in a twin so it wasn’t too bad. However I read reviews for cheaper top sheets and theres so many stories of them falling apart, pilling, or feeling terrible.
Absolutely no pilling or falling apart after the first wash and dry. Stuck it right on my bed and its very cozy and fits perfectly. Not too hot and not too cold.
For any first time bedsheet shoppers: i wasnt sure what type i’d want. Cotton? Microfiber? Sateen? I went with jersey because I think the one my mom uses was that and i loved it as a kid. This definitely feels like a thicker T shirt- not as plush soft or smooth as I wanted, but not rough by any means. Its not clingy either.
I swapped from a microfiber (cheap set from walmart with cartoon characters on it) and the top sheet literally changed everything. I don’t toss and turn at night! I wake up and it takes seconds to make my bed- i’m not untying a huge knot. It adds such a tiny bit of weight thats so comfy and cozy and not hot.
You can be certain you’re not taking a risk with this brand at the price. Very mych happy with my purchase and have been sleeping a lot better.
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Reviewed in the United States on May 1, 2026
★★★★★ 4
Not lightweight
Color: Charcoal Dark Grey(flat Sheet Only), Size: Twin
Bought for use as a summer blanket, the weight is heavier than expected and may prove too warm.
Otherwise, seems to be a well-made product.
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Reviewed in the United States on April 18, 2025
★★★★★ 5
Quality jersey T-shirt sheet
Color: Heather Grey(flat Sheet Only), Size: Twin
Comfy jersey sheet, feels just like your favorite T-shirt, definitely a winner
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Reviewed in the United States on March 14, 2026
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