baseAction — Mathlib

English

A MulAction of H on NormalWord d is defined, giving the base word head transformed by h.

Русский

Определено умножающее действие H на NormalWord d, действующее на голову базового слова.

LaTeX

$$MulAction H (NormalWord d) with head := h * w.head$$

Lean4

instance baseAction : MulAction H (NormalWord d) :=
  { smul := fun h w => { w with head := h * w.head }, one_smul := by simp [instHSMul]
    mul_smul := by simp [instHSMul, mul_assoc] }

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