Top-layer-free resilience (1): $64\,|\{u\notin L(\varnothing):256k\,\sigma_u(V)>N\}|\ge n$ for covering pairs (Erdős 624)

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Top-layer-free resilience (1): $64\,|\{u\notin L(\varnothing):256k\,\sigma_u(V)>N\}|\ge n$ for covering pairs (Erdős 624) · Prove2Me