FormalConjectures/OEIS/1359.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
7 declarations, 1 contain sorry, 0 declared as axioms
Imports (1)
- def
OeisA1359.aThe $n$-th lesser twin prime, with $a(0) = 0$ line 34 sourceSource documentation
The $n$-th lesser twin prime, with $a(0) = 0$.
standard axioms: Classical.choice, Quot.sound, propext what this means
Statement uses:
NatProof uses:
ite,GT.gt,OfNat.ofNat,Nat.nth,And,Nat.Prime,HAdd.hAdd,HSub.hSub7 instances, coercions and auxiliary constants left out.
noncomputable def a (n : ℕ) : ℕ := …
- theorem
OeisA1359.a_0Value of the sequenceaat 0 line 42 sourceSource documentation
Value of the sequence
aat 0.standard axioms: Classical.choice, Quot.sound, propext what this means
Statement uses:
Eq,Nat, OeisA1359.a,OfNat.ofNatProof uses:
Eq.refl2 instances, coercions and auxiliary constants left out.
Tactic trace: 1 steps
Open to load the checked before-and-after goal states.
theorem a_0 : a 0 = 0 := by rfl …
Mentions: OeisA1359.a
- theorem
OeisA1359.a_1Value of the sequenceaat 1 line 46 sourceSource documentation
Value of the sequence
aat 1.standard axioms: Classical.choice, Quot.sound, propext what this means
Statement uses:
Eq,Nat, OeisA1359.a,OfNat.ofNatProof uses:
Eq.mpr,Nat.nth,And,Nat.Prime,HAdd.hAdd,id,congrFun',congrArg,ite_congr,GT.gt,True,HSub.hSub,eq_true,Mathlib.Meta.NormNum.isNat_lt_true,Mathlib.Meta.NormNum.isNat_ofNat,Eq.refl,Bool,Bool.false,Mathlib.Meta.NormNum.IsNat.to_eq,Mathlib.Meta.NormNum.isNat_natSuband 9 more19 instances, coercions and auxiliary constants left out.
Tactic trace: 4 steps
Open to load the checked before-and-after goal states.
theorem a_1 : a 1 = 3 := by …
Mentions: OeisA1359.a
- theorem
OeisA1359.a_2Value of the sequenceaat 2 line 52 sourceSource documentation
Value of the sequence
aat 2.standard axioms: Classical.choice, Quot.sound, propext what this means
Statement uses:
Eq,Nat, OeisA1359.a,OfNat.ofNatProof uses:
id,Eq.trans,Nat.nth,And,Nat.Prime,HAdd.hAdd,HSub.hSub,Nat.count,congr_arg,Eq.refl,Nat.nth_count,of_decide_eq_true,Bool,Decidable.decide,Bool.true8 instances, coercions and auxiliary constants left out.
Tactic trace: 4 steps
Open to load the checked before-and-after goal states.
theorem a_2 : a 2 = 5 := by …
Mentions: OeisA1359.a
- theorem
OeisA1359.a_3Value of the sequenceaat 3 line 58 sourceSource documentation
Value of the sequence
aat 3.standard axioms: Classical.choice, Quot.sound, propext what this means
Statement uses:
Eq,Nat, OeisA1359.a,OfNat.ofNatProof uses:
Eq.mpr,Nat.nth,And,Nat.Prime,HAdd.hAdd,id,congrFun',congrArg,ite_congr,GT.gt,True,HSub.hSub,eq_true,Mathlib.Meta.NormNum.isNat_lt_true,Mathlib.Meta.NormNum.isNat_ofNat,Eq.refl,Bool,Bool.false,Mathlib.Meta.NormNum.IsNat.to_eq,Mathlib.Meta.NormNum.isNat_natSuband 8 more20 instances, coercions and auxiliary constants left out.
Tactic trace: 6 steps
Open to load the checked before-and-after goal states.
theorem a_3 : a 3 = 11 := by …
Mentions: OeisA1359.a
- theorem
OeisA1359.a_4Value of the sequenceaat 4 line 65 sourceSource documentation
Value of the sequence
aat 4.standard axioms: Classical.choice, Quot.sound, propext what this means
Statement uses:
Eq,Nat, OeisA1359.a,OfNat.ofNatProof uses:
Eq.mpr,Nat.nth,And,Nat.Prime,HAdd.hAdd,id,congrFun',congrArg,ite_cond_eq_true,GT.gt,HSub.hSub,Eq.trans,LT.lt,True,Nat.count,congr_arg,Eq.refl,Nat.nth_count,of_decide_eq_true,Booland 2 more21 instances, coercions and auxiliary constants left out.
Tactic trace: 4 steps
Open to load the checked before-and-after goal states.
theorem a_4 : a 4 = 17 := by …
Mentions: OeisA1359.a
- theorem
OeisA1359.conjecturesorry line 79 sourcedepends on sorry what this means
Statement uses:
Nat,GT.gt,OfNat.ofNat,Nat.nth,Nat.Prime,HSub.hSub,Nat.ModEq,Nat.factorial,HAdd.hAdd,Finset.prod,Finset.Icc,Iff,Or,Eq,AndProof uses:
sorryAx,Lean.Name,Bool.false,Lean.Name.num,Lean.Name.str,Lean.Name.anonymous18 instances, coercions and auxiliary constants left out.
Tactic trace: 1 steps
Open to load the checked before-and-after goal states.