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Proof step 7 from proof btree-inv-root-null (
previous step
)
⊦ ((btree(rp0, r0, adr, height0, false, ri0, iast, as0, alladrs0, nstat) * P0))(zh0) ∧ ((btree(rp1, r1, adr, height1, false, ri1, iast, as1, alladrs1, nstat) * P1))(zh1) → height0 = height1 ∧ as0 = as1 ∧ ri0 = ri1 ∧ alladrs0 = alladrs1
Lemma
btree-clean-fwd