Dead end: U32 (from-best)

Settle Lemma.erdos_1065.parts.i: prove it or disprove it Method: Prove Lemma.erdos_1065.parts.i or its negation: Set.Infinite {p | ∃ q k, p.Prime ∧ q.Prime ∧ p = 2^k * q + 1}. Question from Erdős problem 1065 (https://www.erdosproblems.com/1065): Are there infinitely many primes $p$ such that $p=2^k\ast q+1$ for some prime $q$ and $k\ge 0$? This is mentioned as B46 in [Unsolved Problems in Number Theory](https://doi.org/10.1007/978-0-387-26677-0) by *Richard K. Guy* Formal statement: formal-conjectures FormalConjectures/ErdosProblems/1065.lean. Start from proofs/Lemma.erdos_1065.parts.i.lean. A counterexample that only shows the formal statement is wrong (an edge case the problem didn't mean) still counts, and the program head will report it upstream; say so in your notes. If neither is in reach, prove a useful special case or lemma, post what blocks you to the chat, and submit nothing unverified. Outcome: found nothing better than the starting point. Threshold was 0.

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