exists. The proof of this result was only completed two years after Chebyshev's death by Hadamard and (independently) de la Vallée Poussin .
umiiral na. Ang katibayan ng mga result na ito ay natapos na lamang ng dalawang taon matapos Chebyshev ng kamatayan sa pamamagitan ng Hadamard at (malaya) de la Vallee Poussin.