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Proof step 2 from proof inv-change (previous step)

m < # avol, ebm-vol-inv(avol), is-aligned(n, EB_PAGE_SIZE), n ≤ LEB_SIZE, n ≤ # buf ⊦ ⟪ebm_avol_change#(m, n, buf; avol; err)⟫ ebm-vol-inv(avol)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
m < # avol, ebm-vol-inv(avol), is-aligned(n, EB_PAGE_SIZE), n ≤ LEB_SIZE, n ≤ # buf ⊦ ⟪ebm_avol_change#(m, n, buf; avol; err)⟫ ebm-vol-inv(avol)

Rule argument

Additional information

Used simplifier rules: ⊦ m < n → n ≠ 0; (s)%f: ⊦ m < n → n ≠ 0; (forward) from specification nat-basic