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Proof step 14 from proof abs-padding-abs-nodes-h (previous step)

# buf1 = NODE_HEADER_SIZE, x = nd + x0, is-aligned(# buf0, 2 * NODE_HEADER_SIZE), is-encoded(nodeheader(# buf0, true), buf1) ⊦ abs-nodes(buf1 + buf0 + validtrailer, m, x, lax, weak) ↔ x = [] ∧ lax = []

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 15:
# buf1 = NODE_HEADER_SIZE, abs-nodes(buf1 + buf0 + validtrailer, m, nd ' + x0, lax, weak), is-aligned(# buf0, 2 * NODE_HEADER_SIZE), is-encoded(nodeheader(# buf0, true), buf1) ⊦

Rule argument

Additional information

Used simplifier rules: a: ⊦ (x + y) + z = x + y + z; from specification list% ⊦ a ' + x ≠ []; (s)% ⊦ a + x = a ' + x; (s)