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

avol[m].mapped?, m < # avol, ebm-vol-inv(avol), is-aligned(n, EB_PAGE_SIZE), is-aligned(m0, EB_PAGE_SIZE), n0 + n ≤ # buf, m0 + n ≤ LEB_SIZE, # avol[m].data ≤ m0 ⊦ ⟪ebm_avol_write#(m, m0, n0, n, buf; avol; err)⟫ ebm-vol-inv(avol)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
avol[m] = mapped(buf0), m < # avol, ebm-vol-inv(avol), is-aligned(n, EB_PAGE_SIZE), is-aligned(m0, EB_PAGE_SIZE), n0 + n ≤ # buf, m0 + n ≤ LEB_SIZE, # buf0 ≤ m0 ⊦ ⟪ebm_avol_write#(m, m0, n0, n, buf; avol; err)⟫ ebm-vol-inv(avol)

Rule argument

Additional information

Used simplifier rules: ⊦ mapped(buf).data = buf; (s)% ⊦ m < n → n ≠ 0; (s)%f: ⊦ m < n → n ≠ 0; (forward) from specification nat-basic% ⊦ aleb.mapped? ↔ (∃ buf. aleb = mapped(buf)); (as)