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Proof step 1 from proof btree-crash (conclusion)

⊦ ((btree(null, null, adr, height, false, fi, iast0, as, alladrs, ok) * true))(zh0) → ((btree(null, null, adr, height, false, fi, iast0, as, alladrs, ok) * true))(zh1)

System applied rule normalize

And obtained the following new goals

Proof step 2:
((btree(null, null, adr, height, false, fi, iast0, as, alladrs, ok) * true))(zh0) ⊦ ((btree(null, null, adr, height, false, fi, iast0, as, alladrs, ok) * true))(zh1)

Proof step 1 from proof btree-crash (conclusion)

System applied rule normalize

And obtained the following new goals

Rule argument

Additional information