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[SOLVED] Cantor ternary set, construction

dwsmith

Well-known member
Feb 1, 2012
1,673
Explain why all the end points of the closed intervals that comprise $C_n$ are in the Cantor set $C_n$.

I understand why this is true but I don't know how to explain it.
 
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CaptainBlack

Well-known member
Jan 26, 2012
890
Explain why all the end points of the closed intervals that comprise $C_n$ are in the Cantor set $C_n$.

I understand why this is true but I don't know how to explain it.
Because at each step the open middle third of each remaining intervals is removed, which always leaves the end points of the intervals at the earlier stage in the set, and as end points of the new intervals (one of the end points the other for each interval is created at each step).

CB