combibench-v1 / brualdi-ch8-6
brualdi-ch8-6
open
difficulty 4
credited
Run this goal:
./swarm/run.sh --goal brualdi-ch8-6What 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-ch8-6.lean
import Mathlib
theorem brualdi_ch8_6 (n : ℕ) (h : ℕ → ℝ) (h' : ∀ i, h i = 2 * i ^ 2 - i + 3) :
∑ i ∈ Finset.range (n + 1), h i = ((fun n => ((n + 1) * (4 * n ^ 2 - n + 18) / 6)) : ℕ → ℝ ) n := by
sorryRuns (0)
No runs recorded for this suite yet — they appear here as the swarm attempts the benchmarks.