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Erdős problem 9

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Is the upper density of the set of odd numbers that cannot be expressed as a prime plus two powers of 2 positive?

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The source's own material, retained exactly.

5 retained statements36c6d0fef71a

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FormalConjectures/ErdosProblems/

9.lean

Retained formal statement3 of 5
FormalConjectures/ErdosProblems/9.leanErdos9.erdos9A_contains_one1 lineExact file
1 ∈ Erdos9.Erdos9A
TestStatement only, no proof