Question: =+ (b) Put B = U, (r, - 2-n-2, r ,, + 2- -2], where r1, r2 ,... is an enumeration of the rationals in

(b) Put B = U, (r, - 2-n-2, r ,, + 2-" -2], where r1, r2 ,... is an enumeration of the rationals in (0, 1]. Show that (0, 1] - B is nowhere dense but not trifling or even negligible.

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