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error_not_isLittleO
Specification
Hardy and Laundau independently found a lower bound by showing that $$ |E(r)| \neq o\left(r^{1/2}(\log r)^{1/4}\right) $$
Lean 4 Statement
theorem error_not_isLittleO : ¬E =o[atTop] (fun r => √r * √√r.log)
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