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+/-
+Copyright 2025 The Formal Conjectures Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    https://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+-/
+
+import FormalConjectures.Util.ProblemImports
+
+/-!
+# Erdős Problem 1088
+
+*Reference:* [erdosproblems.com/1088](https://www.erdosproblems.com/1088)
+-/
+
+open scoped EuclideanGeometry
+
+namespace Erdos1088
+
+variable {d : ℕ}
+
+def pairwiseDistancesDistinct (A : Finset (ℝ^d)) : Prop :=
+  (A.offDiag.image (fun p : (ℝ^d) × (ℝ^d) => dist p.1 p.2)).card = Nat.choose A.card 2
+
+def hasSubsetWithDistinctDistances (n : ℕ) (S : Finset (ℝ^d)) : Prop :=
+  ∃ A : Finset (ℝ^d), A ⊆ S ∧ A.card = n ∧ pairwiseDistancesDistinct A
+
+def cardSet (d n : ℕ) : Set ℕ :=
+  { m | ∀ S : Finset (ℝ^d), S.card = m → hasSubsetWithDistinctDistances n S }
+
+noncomputable def f (d n : ℕ) : ℕ := sInf (cardSet d n)
+
+@[category research open, AMS 51]
+theorem erdos_1088_general :
+    (∀ d ≥ 1, ∀ n ≥ 1, ∃ m, ∀ S : Finset (ℝ^d), S.card = m → hasSubsetWithDistinctDistances n S)
+    ↔ answer(sorry) := by
+  sorry
+
+@[category research open, AMS 51]
+theorem erdos_1088_exponential :
+    (∀ d ≥ 3, ∃ c₁ c₂ : ℕ, 0 < c₁ ∧ c₁ ≤ c₂ ∧
+      ∀ n ≥ 1, 2 ^ (c₁ * n) ≤ f d n ∧ f d n ≤ 2 ^ (c₂ * n)) ↔ answer(sorry) := by
+  sorry
+
+end Erdos1088
+