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Proof step 6 from proof is-encoded-app-one (previous step)

# buf1 = EB_PAGE_SIZE, is-encoded(nx0 + n ', buf0) ↔ (∃ buf2, buf1. buf0 = buf2 + buf1 ∧ is-encoded(nx0, buf2) ∧ is-encoded(rnode(n), buf1)), is-encoded(nx0 + n ', buf0), is-encoded(rnode(m), buf1) ⊦ ∃ buf3, buf2. buf1 + buf0 = buf3 + buf2 ∧ (∃ buf2, buf1. buf3 = buf2 + buf1 ∧ is-encoded(rnode(m), buf2) ∧ is-encoded(nx0, buf1)) ∧ is-encoded(rnode(n), buf2)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 7:
# buf2 = EB_PAGE_SIZE, # buf1 = EB_PAGE_SIZE, is-encoded(rnode(n), buf2), is-encoded(nx0, buf), is-encoded(nx0 + n ', buf + buf2), is-encoded(rnode(m), buf1) ⊦ ∃ buf3, buf4. buf1 + buf + buf2 = buf3 + buf4 ∧ (∃ buf2, buf1. buf3 = buf2 + buf1 ∧ is-encoded(rnode(m), buf2) ∧ is-encoded(nx0, buf1)) ∧ is-encoded(rnode(n), buf4)

Rule argument

Additional information

Used simplifier rules: is-encoded-size: ⊦ is-encoded(rnd, buf) → # buf = EB_PAGE_SIZE; (forward) from specification encoding-page-size-nonempty[encoding-ref-node]