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Description
From Geometry to TopologyThis excellent introduction to topology eases first year math students and general readers into the subject by surveying its concepts in a descriptive and intuitive way, attempting to build a bridge from the familiar concepts of geometry to the formalized study of topology. The first three chapters focus on congruence classes defined by transformations in real Euclidean space. As the number of permitted transformations increases, these classes become
This excellent introduction to topology eases first-year math students and general readers into the subject by surveying its concepts in a descriptive and intuitive way, attempting to build a bridge from the familiar concepts of geometry to the formalized study of topology. The first three chapters focus on congruence classes defined by transformations in real Euclidean space. As the number of permitted transformations increases, these classes become larger, and their common topological properties become intuitively clear. Chapters 4-12 give a largely intuitive presentation of selected topics. In the remaining five chapters, the author moves to a more conventional presentation of continuity, sets, functions, metric spaces, and topological spaces. Exercises and Problems. 101 black-and-white illustrations. 1974 edition.Binding Type: Paperback
Publisher: Dover Publications
Published: 09/04/2001
ISBN: 9780486419619
Pages: 208
Weight: 0.49lbs
Size: 8.52h x 5.50w x 0.43d
Review Citations: Scitech Book News 12/01/2001 pg. 45
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4.0 ★★★★★
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★★★★★ 4
Beautiful design
Simple, functional and beautifully designed, I'm glad I bought it.
(not a five starts just because I thought it was higher, but again, my fault for not reviewing the specs first)
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Reviewed in the United States on October 29, 2024
★★★★★ 5
Phenomenal Stand!
I Have 5 Of These Top Shelve Laptop Stands I Use For Various Projects I Work On While Home.
Mostly Music Editing & DJing! These Stands Are Most Durable!!
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Reviewed in the United States on March 21, 2026
★★★★★ 5
Not Your Average Laptop Stand
One of the things that I always worry about with stands for my computer is how sturdy they will be. If they aren't sturdy, they aren't really worth having. This is super sturdy -- I don't feel any bounce or flex when I work on it. It's also super well made and looks good sitting on my desk. Both of those things make this one of the best stands that I've used. I just wish it were adjustable.
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Reviewed in the United States on September 7, 2025
★★★★★ 5
I’m really impressed with these 12-inch Heavy Duty Floating Shelf Brackets!
Size: 12 Inch, Style: Black 6Pack
I recently installed them in my living room to hold some books and decorative items, and they’ve been fantastic. The brackets feel extremely solid and well-made — the 1/5-inch thick iron gives them a sturdy, industrial look and they hold the shelves without any wobbling or sagging. I also love the sleek black finish; it looks modern and stylish, and it really complements my décor.
Installation was straightforward and stress-free because the set comes with screws, anchors, and a lever — everything I needed to get the shelves up securely. The pack of six brackets is great because it gave me enough for multiple shelves and even an extra in case I need it.
The only minor thing to note is that aligning the brackets perfectly requires a bit of patience, but once leveled, they hold like a dream.
Overall, these brackets are a great combination of strength, style, and value. They’ve made my shelves look clean and professional, and I feel confident they’ll last for years. Highly recommend for anyone looking for heavy-duty, attractive shelf support!
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Reviewed in the United States on December 7, 2025
★★★★★ 5
High quality look for office
Size: 10 Inch, Style: Black 4Pack, Size: 10 Inch, Style: Black 4Pack
These brackets were exactly what I was looking for. Very solid construction, clean powder-coated finish, and they gave the shelves a modern industrial look without being bulky. Installation was straightforward, and once mounted into studs they felt extremely sturdy.
I used them for floating wood shelves and was honestly impressed with how much weight they can handle without flexing. The black finish also matched perfectly with the rest of the room hardware.
For the price, these are a great value and look far more expensive than they are. Would definitely buy again for future projects.
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Reviewed in the United States on May 1, 2026