Erdős problem 968 · problems.science

Does the set {n | u n < u (n+1)} have positive lower density?

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5 retained statements2415f78e850a

FormalConjectures/ErdosProblems/

968.lean

Retained formal statement2 of 5

Erdős and Prachar proved that the set {n | u n > u (n+1)} has positive lower density (see [ErPr61]).

FormalConjectures/ErdosProblems/968.leanErdos968.erdos_968.variants.decreasing_steps_pos_lower_density1 lineExact file

10 < {n | Erdos968.u n > Erdos968.u (n + 1)}.lowerDensity

SolvedStatement only, no proof