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Mathematics 18 Online
OpenStudy (anonymous):

how to show the set {(0,2] c R} is countable

OpenStudy (anonymous):

(0,2] is uncountable

jimthompson5910 (jim_thompson5910):

to prove jayzdd's claim, look at this pdf https://math.byu.edu/~bakker/M290/Lectures/Lec25.pdf

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