
Define the characteristic sequence of a set A C Z+ to be the following infinite binary sequence, XA-bib2bz… . whose nth bit is 1 if n E A Write XA for the first n bits of xA
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Define the characteristic sequence of a set A C Z+ to be the following infinite binary sequence, XA-bib2bz… . whose nth bit is 1 if n E A Write XA for the first n bits of xA
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