Top network posts

• 65 Why is the localization at a prime ideal a local ring?
• 44 What is the reason for using && instead of ; to place to commands on the same line?
• 41 A ring with few invertible elements
• 33 Factorize $(x+1)(x+2)(x+3)(x+6)- 3x^2$
• 31 Examples of mathematical results discovered "late"
• 31 Can a collection of points be recovered from its multiset of distances?
• 30 Puzzles or short exercises illustrating mathematical problem solving to freshman students
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