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lemma proved term proof

aggCoeff_append

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formal statement (Lean)

 368lemma aggCoeff_append (xs ys : List MicroMove) (pair : ℕ) (prim : Primitive) :
 369    aggCoeff (xs ++ ys) pair prim = aggCoeff xs pair prim + aggCoeff ys pair prim := by

proof body

Term-mode proof.

 370  classical
 371  unfold aggCoeff
 372  simp only [List.filter_append, List.map_append, List.sum_append]
 373
 374/-- Aggregation over a flat-mapped list of row moves. -/

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