Source labels openChecked July 26, 2026

Erdős Problem 98

Let $h(n)$ be such that any $n$ points in $\mathbb{R}^2$ , with no three on a line and no four on a circle, determine at least $h(n)$ distinct distances. Does $h(n)/n\to \infty$ ?

Convex geometry AMS 52

Mathematical statement

Let $h(n)$ be such that any $n$ points in $\mathbb{R}^2$ , with no three on a line and no four on a circle, determine at least $h(n)$ distinct distances. Does $h(n)/n\to \infty$ ?

Statement source: Erdős Problems statement material

Statement terms: Source-specific

Source-specific terms. Therefore does not assert reuse rights beyond attributed display.

Statement artifacts, not proofs

These records expose exact Lean propositions and statement-only wrappers. Defining a proposition does not supply a proof of it. A placeholder-bearing target also contains no proof. Elaboration checks syntax and types; it does not certify that a formalization perfectly captures every nuance of the informal problem.

Pinned Lean formulation 1

erdos_98

Canonical source

Complete statement target, proof intentionally absentLean 4

theorem erdos_98 :    answer(sorry) ↔ Tendsto (fun n : ℕ ↦ ((h n : ℝ) / (n : ℝ))) atTop atTop := by  sorry

Statement source: Formal Conjectures
Lean version: v4.27.0
Placeholder: Present; no proof artifact
Source evidence: Pinned source index
Fidelity review: Community formulation

References

Pinned Formal Conjectures sourceformalization [Er75fbackground [Er83cbackground [Er87bbackground