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lemma proved term proof

mapDeltaAction_fromZ

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formal statement (Lean)

 109@[simp] lemma mapDeltaAction_fromZ (δ : ℤ) (hδ : δ ≠ 0)
 110  (hbar : ℝ) (n : ℤ) :
 111  mapDeltaAction δ hδ hbar (LedgerUnits.fromZ δ n) = hbar * (n : ℝ) := by

proof body

Term-mode proof.

 112  classical
 113  have h := mapDelta_fromZ (δ:=δ) (hδ:=hδ) (f:=actionMap hbar) (n:=n)
 114  simpa [mapDeltaAction, actionMap, add_comm] using h
 115

depends on (11)

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