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Description
Introduction to Topology: Third EditionHighly regarded for its exceptional clarity, imaginative and instructive exercises, and fine writing style, this concise book offers an ideal introduction to the fundamentals of topology. Originally conceived as a text for a one semester course, it is directed to undergraduate students whose studies of calculus sequence have included definitions and proofs of theorems. The book's principal aim is to provide a simple, thorough survey of elementary
Highly regarded for its exceptional clarity, imaginative and instructive exercises, and fine writing style, this concise book offers an ideal introduction to the fundamentals of topology. Originally conceived as a text for a one-semester course, it is directed to undergraduate students whose studies of calculus sequence have included definitions and proofs of theorems. The book's principal aim is to provide a simple, thorough survey of elementary topics in the study of collections of objects, or sets, that possess a mathematical structure.The author begins with an informal discussion of set theory in Chapter 1, reserving coverage of countability for Chapter 5, where it appears in the context of compactness. In the second chapter Professor Mendelson discusses metric spaces, paying particular attention to various distance functions which may be defined on Euclidean n-space and which lead to the ordinary topology. Chapter 3 takes up the concept of topological space, presenting it as a generalization of the concept of a metric space. Chapters 4 and 5 are devoted to a discussion of the two most important topological properties: connectedness and compactness. Throughout the text, Dr. Mendelson, a former Professor of Mathematics at Smith College, has included many challenging and stimulating exercises to help students develop a solid grasp of the material presented.Binding Type: Paperback
Publisher: Dover Publications
Published: 07/01/1990
ISBN: 9780486663524
Pages: 224
Weight: 0.51lbs
Size: 8.41h x 5.44w x 0.45d
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Style: Dress, Color: Two-Tone Gold/ Blue Dial
Absolute great watch. It’s perfect for an every day and situation from work to date night. I had to take out 4 links and now it fits perfectly!
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Reviewed in the United States on July 5, 2025
★★★★★ 5
Wonderful
Fantastic buy! This contains everything I need (minus a phone), and because it zips up, I know everything is secure. I recommend this product.
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Reviewed in the United States on April 12, 2026
★★★★★ 5
Exactly what I needed for traveling!
This Amazon Basics Travel Passport Wallet Organizer is amazing value for the price. It has multiple easily accessible slots & pockets that can be used for credit cards, boarding passes, receipts, pens, and currencies if traveling internationally. The wallet has a zipper which can safely secure folded documents such as immunization records, marriage certificates, and citizen forms if needed. The functional design is larger than I anticipated and the material feels well-made, solid, and looks nice. I could not fit the wallet in my pocket, but it easily fits into a backpack or purse. If I happen lose this or misplaced this one, I will be purchasing this again.
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Reviewed in the United States on November 2, 2025
★★★★★ 5
Good purchase
I love this. Good quality, secur, easy to carry when travelling and plenty of card space. Slides in your carry on with ease. Good price... worth the price for me.
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Reviewed in the United States on January 24, 2026
★★★★★ 4
Great Hold-All
This seems to be well-made and I like the configuration. It should hold passport, ID, credit cards, cash and any travel docs with no problem. It is a bit larger than I expected, however, so that will have an impact on what sort of purse, belt bag, or etc. I use to carry it. My biggest issue with this and ANY RFID blocking wallets/purses/etc. is that I wish the manufacturers would add a sewn in tag or imprint on the product itself that SAYS it's RFID blocking. After time goes buy it gets hard to remember which items in your travel stash are or aren't. I've used a Sharpie to mark this one, but it would be nice if the manufacturer did so professionally.
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Reviewed in the United States on September 5, 2024
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