Formal target: Corpus.Erdos779.erdos_779
A Conjecture of Marian Deaconescu, see p.120 in https://doi.org/10.2307/2975810 [Needed to index shift in order to avoid trivial case $n = 0$, where the conjecture is trivially false.]
Exact formal statement
∀ (n : Nat),
GE.ge.{0} n 1 →
have P := Finset.prod.{0, 0} (Finset.range (HAdd.hAdd.{0, 0, 0} n 1)) fun i => Nat.nth Nat.Prime i;
Exists.{1} fun p =>
And (Nat.Prime p)
(And (Nat.Prime (HAdd.hAdd.{0, 0, 0} P p)) (And (LT.lt.{0} (Nat.nth Nat.Prime n) p) (LT.lt.{0} p P)))This target is a formal statement, not a proof of the problem.
Environment availability: available.