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Math Forum » Discussions » sci.math.* » sci.math.independent

Topic: Countably Infinite Sets
Replies: 11   Last Post: Dec 28, 2012 9:08 PM

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netzweltler

Posts: 278
From: Germany
Registered: 8/6/10
Countably Infinite Sets
Posted: Dec 27, 2012 9:43 PM
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Does the set {{1}, {1,2}, {1,2,3}, ...} contain all natural numbers?

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