| A[n] = A[m], m < # A, n < # A, m < i, n < i, i ≤ # A, # A ≥ 2 ⊦ m = n, count(A[m], mkbag(A, i)) ≠ 0 ∧ count(A[m], mkbag(A, i)) ≠ 1 |
A[n] = A[m], n < i, m < i, n < # A, m < # A, i ≤ # A, 2 ≤ # A ⊦ m = n, count(A[m], mkbag(A, i)) ≠ 0 ∧ count(A[m], mkbag(A, i)) ≠ 1
Used simplifier rules: ⊦ n ≥ m ↔ m ≤ n; (s)