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Proof step 3 from proof abs-failed-abs-nodes-h (previous step)

abs-failed(buf) ⊦ abs-nodes(buf, n, x, lax, weak) ↔ lax = [] ∧ x = [] ∧ weak

User applied rule constructor cut

And obtained the following new goals

Proof step 4:
x = [], abs-failed(buf) ⊦ abs-nodes(buf, n, x, lax, weak) ↔ lax = [] ∧ x = [] ∧ weak
Proof step 12:
x = nd + x0, abs-failed(buf) ⊦ abs-nodes(buf, n, x, lax, weak) ↔ lax = [] ∧ x = [] ∧ weak

Rule argument

var: x

Additional information

Used simplifier rules: list freely generated by [], +;;