The theorem that proves this is the PCP Theorem, in case anyone wants to read more about it: https://en.wikipedia.org/wiki/PCP_theorem#PCP_and_hardness_of_appro

The theorem that proves this is the PCP Theorem, in case anyone wants to read more about it: https://en.wikipedia.org/wiki/PCP_theorem#PCP_and_hardness_of_approximation https://en.wikipedia.org/wiki/PCP_theorem#PCP_and_hardness_o...