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Theorems · Theorem · combinatorics

List.foldl_eq_of_comm_of_assoc

Deprecated since 2026-04-02Use List.foldl_cons_eq_apply_foldl instead.

∀ {α : Type u_1} {β : Type u_2} {l : List α} {v : β → α → β} {a : α} {b : β} [hv : RightCommutative v],
  List.foldl v b (a :: l) = v (List.foldl v b l) a

Alias of List.foldl_cons_eq_apply_foldl.

Defined in
Mathlib.Data.List.Fold
Cited by
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Foundations
Depth 9 from the axioms · uses propext
Assumes
RightCommutative
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RightCommutative · cited by 17RightCommutativeList.foldl_cons_eq_apply_foldl · cited by 4List.foldl_cons_eq_apply_…List.foldl_eq_of_comm_of_assocCITED BYCITES

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