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Proof step 6 from proof save-load-save (previous step)

n < BRANCH_SIZE, m + nused ≤ BRANCH_SIZE ⊦ save(load(save(zbrar, m, nused), m, nused), m, nused)[n] = save(zbrar, m, nused)[n]

User applied rule cut formula

And obtained the following new goals

Proof step 7:
n < BRANCH_SIZE, m + nused ≤ BRANCH_SIZE, m ≤ n ⊦ save(load(save(zbrar, m, nused), m, nused), m, nused)[n] = save(zbrar, m, nused)[n]

Rule argument

fma: m ≤ n

Additional information

Used simplifier rules: at-save-out-lower: n < m, m + nused ≤ BRANCH_SIZE ⊦ save(zbrar, m, nused)[n] = mkbrarray(BRANCH_SIZE)[n];% ⊦ m < n ↔ ¬ n ≤ m; (ss) Used formulas: m ≤ n