-- Any decimal that ends is a rational number.
-- Any decimal that never ends may or may not be a rational number.
-- The decimal representation of an irrational number never ends.
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There are an infinite number of subsets: All rationals other than 1 All rationals other than 2, etc All rationals other than 1.1 All rationals other than 2.1, etc, etc. All integers
yes
All rationals are real, so everything that is true of the reals is also true of the rationals, and vice versa.
Venlo Mac Van
No.