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Proof step 2 from proof btree-truify-context (previous step)

((btree(rp, r, adr, height, dirty, ri, iast, as, alladrs, ok) * P))(zh) ⊦ ((btree(rp, r, adr, height, dirty, ri, iast, as, alladrs, ok) * true))(zh)

Heuristic simplifier applied rule simplifier

And closed the goal!

Rule argument

Additional information

Used simplifier rules: ⊦ ((P1 * P2))(zh) → ((true * P2))(zh); (s)%sep-com: ⊦ P * P2 = P2 * P; from specification heap-sep[zheap]%sep-ass: ⊦ (P * P3) * P4 = P * P3 * P4; from specification heap-sep[zheap]