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

v = default-volid, avols[v][m].mapped?, m < # avols[v], ebm-cons(avols), v ∈ avols, n0 + n ≤ # buf, m0 + n ≤ LEB_SIZE ⊦ ⟪ebm_vol_read#(m, m0, n0, n, v, avols; buf; err)⟫ true

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
avols[default-volid][m].mapped?, m < # avols[default-volid], ebm-cons(avols), default-volid ∈ avols, n0 + n ≤ # buf, m0 + n ≤ LEB_SIZE ⊦ ⟪ebm_vol_read#(m, m0, n0, n, default-volid, avols; 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