Fix a few minor Lean misformalisations #243
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This was disprovable because the value `g 0` breaks the period-4 pattern. More precisely, the period 4 arises because powers of 2 mod 10 have period 4 (2, 4, 8, 6, 2, 4, 8, 6, ...). However this starts at 2^1 and the inital value 2^0 = 1 breaks the pattern. This was previously "fixed" in 295b586 but unfortunately an error remained.
This was disprovable because of an off-by-one error. Specifically, the length of the list was the number of locations (including the initial location) rather than the number of hops. I have opted to rewrite the question in addition to fixing the error.
GeorgeTsoukalas
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Nov 4, 2024
GeorgeTsoukalas
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Nov 9, 2024
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