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Proof step 18 from proof nodups-oc (conclusion)

⊦ m < # A ∧ nodups(A) → (∀ n. (n < m → #oc(A[n], A, m) = 1) ∧ (m ≤ n ∧ n < # A → #oc(A[n], A, m) = 0))

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 17:
nodups(A), m < # A ⊦ (n < m → #oc(A[n], A, m) = 1) ∧ (m ≤ n ∧ n < # A → #oc(A[n], A, m) = 0)

Rule argument

Additional information

[Concretesimprules((Csimpnamedseq(nat-basic1,,f, ⊦ m < n → n ≠ 0) Csimpnamedforward(nat-basic1,,f, ⊦ m < n → n ≠ 0)))]