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Erdős problem 955

If A⊂NA\subset \mathbb{N} has density 00 then s−1(A)s^{-1}(A) must also have density 00.

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12 retained statements2415f78e850a

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FormalConjectures/ErdosProblems/

955.lean

Retained formal statement10 of 12
FormalConjectures/ErdosProblems/955.leanErdos955.s_twelve1 lineExact file
Erdos955.s 12 = 16
TestStatement only, no proof

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