2,4,9
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The set of negative integers.
Finite.
The numbers 1, 2, 3, ... , 18, 19.
A= {x/x is a counting number less than 6} A={1,2,3,4,5} B={x/x is counting number than 5 but less than or equal to 10} B={6,7,8,9,10} -Mina Bacalla-
1:2