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

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

Heuristic simplifier applied rule simplifier

And obtained the following new goals

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

Rule argument

Additional information

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