FormalConjectures/Wikipedia/Firoozbakht.lean
Explanation legend Lean4 Domain Explanation Language (L4DEL)
L4DEL explanations are a separate layer. They do not change the Lean source. Intuition is explanatory prose; numbered items are a reading path; sources link the wording back to evidence.
- L4DEL
- Lean4 Domain Explanation Language
Credit: The upstream authors and contributors retain credit for the project and mathematics. lean4-explainer only renders their pinned source and adds the separately disclosed explanation layer.
Project sources: Pinned project documentation, Formal Conjectures paper, arXiv v1
3 declarations, 2 contain sorry, 0 declared as axioms
Imports (1)
- def
Firoozbakht.firoozbakhtSeqThe sequence of $\sqrt[n]{p_n}$ where $p_n$ is the n:th prime number line 37 sourceSource documentation
The sequence of $\sqrt[n]{p_n}$ where $p_n$ is the n:th prime number.
standard axioms: Classical.choice, Quot.sound, propext what this means
Statement uses:
Nat,RealProof uses:
HPow.hPow,Nat.nth,Prime,HDiv.hDiv,OfNat.ofNat,HAdd.hAdd12 instances, coercions and auxiliary constants left out.
noncomputable def firoozbakhtSeq (n : ℕ) : ℝ := …
- theorem
Firoozbakht.firoozbakht_conjectureFiroozbakht's conjecture The inequality $\sqrt[n+1]{p_{n+1}} < \sqrt[n]{p_n}$ holds for all prime numbers $p_n$ sorry line 45 sourceSource documentation
Firoozbakht's conjecture The inequality $\sqrt[n+1]{p_{n+1}} < \sqrt[n]{p_n}$ holds for all prime numbers $p_n$.
depends on sorry what this means
Statement uses:
Nat,LT.lt,Real, Firoozbakht.firoozbakhtSeq,HAdd.hAdd,OfNat.ofNatProof uses:
sorryAx,Lean.Name,Bool.false,Lean.Name.num,Lean.Name.str,Lean.Name.anonymous8 instances, coercions and auxiliary constants left out.
Tactic trace: 1 steps
Open to load the checked before-and-after goal states.
theorem firoozbakht_conjecture (n : ℕ) : firoozbakhtSeq (n+1) < firoozbakhtSeq n := by …Mentions: Firoozbakht.firoozbakhtSeq
- theorem
Firoozbakht.firoozbakht_conjecture_consequenceThe inequality $p_{n+1}-p_n < (\log p_n)^2-\log p_n$ holds for all $n>4$ sorry line 54 sourceSource documentation
The inequality $p_{n+1}-p_n < (\log p_n)^2-\log p_n$ holds for all $n>4$. A consequence of Firuzbakht's conjecture.
depends on sorry what this means
Statement uses:
Nat,LT.lt,OfNat.ofNat,Real, Firoozbakht.firoozbakhtSeq,HAdd.hAdd,HSub.hSub,Nat.nth,Prime,HPow.hPow,Real.logProof uses:
sorryAx,Lean.Name,Bool.false,Lean.Name.num,Lean.Name.str,Lean.Name.anonymous28 instances, coercions and auxiliary constants left out.
Tactic trace: 1 steps
Open to load the checked before-and-after goal states.
theorem firoozbakht_conjecture_consequence (n : ℕ) (hn : 3 < n) (P : type_of% firoozbakht_conjecture) : (n+1).nth Prime - n.nth Prime < (log (n.nth Prime))^2 - log (n.nth Prime) := by …Mentions: Firoozbakht.firoozbakht_conjecture