No. Actually if you try to express numbers of [0,1] in base-3 system, you';ll see C contains exactly all the numbers who can be written as 0.c1c2... with c1,c2,...either 0 or 2.
You can then, for any given c in C, construct a strict monotonic sequence in C that tends to c.
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发表于 2010-10-2 16:04
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