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Is the union of finite countable sets finite?

Updated: 4/28/2022
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Raplang

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15y ago

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YES

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Q: Is the union of finite countable sets finite?
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Prove that a finite cartesian product of countable sets is countable?

here is the proof: http://planetmath.org/encyclopedia/ProductOfAFiniteNumberOfCountableSetsIsCountable.html


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CHECK THIS OUT http://www.mathstat.dal.ca/~hill/2112/assn7sol.pdf


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