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lemma proved term proof

kOf_step_succ

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formal statement (Lean)

 101lemma kOf_step_succ (δ : ℤ) (hδ : δ ≠ 0) (m : Nat) :
 102  kOf δ (fromNat δ (m+1)) = kOf δ (fromNat δ m) + 1 := by

proof body

Term-mode proof.

 103  simp only [kOf, fromNat, toZ_fromZ δ hδ, Int.natCast_add, Int.natCast_one]
 104  rfl
 105
 106/-- Quantization: every element of the δ-subgroup has a unique integer coefficient. -/

depends on (11)

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