brualdi-ch3-4

open

difficulty 4

credited

Run this goal:./swarm/run.sh --goal brualdi-ch3-4

What it runs

The Lean statement the swarm must prove — kernel-verified at Gate A. The trailing sorry is the open obligation a proof replaces.

goals/brualdi-ch3-4.lean

import Mathlib

theorem brualdi_ch3_4 (n : ℕ) (S : Finset ℕ) (elem_range : ∀ s ∈ S, (1 ≤ s ∧ s ≤ 2 * n))
    (card : S.card = n + 1) : ∃ s ∈ S, ∃ s' ∈ S, s = s' + 1 := by
  sorry

Runs (0)

No runs recorded for this suite yet — they appear here as the swarm attempts the benchmarks.