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Jack Lee's user avatar
Jack Lee's user avatar
Jack Lee's user avatar
Jack Lee
  • Member for 13 years, 5 months
  • Last seen more than a month ago
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(Officially John M. Lee.) Professor Emeritus of math at University of Washington, Seattle; author of Introduction to Topological Manifolds, Introduction to Smooth Manifolds, Introduction to Riemannian Manifolds, and Axiomatic Geometry.

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226
Lee, Introduction to Smooth Manifolds Solutions
119
Properly discontinuous action: equivalent definitions
83
What is the flaw of this proof (largest integer)?
72
Demonstrating that rigour is important
60
In a metric space X, if A is connected, is its interior connected?

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