let A an be uncountable set and B a countable subset of A, show A\B is uncountable. I am not familiar with A \ B, and can't find it in the book!
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Originally Posted by mtlchris let A an be uncountable set and B a countable subset of A, show A\B is uncountable. I am not familiar with A \ B, and can't find it in the book! A\B just refers to the set difference. You might've seen . A\B . You can refer to Set Difference -- from Wolfram MathWorld
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