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Ruler

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Voting Paradox

Some relationships are transitive, such as `if A>B and B>C then it follows that A>C', but some are not. In a voting system, if A beats B and B beats C should we expect A to beat C?

Binary Sequences

Stage: 5 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3
The set of all finite binary sequences of zeros and ones is simply the natural numbers written in binary notation.