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Proof step 3 from proof abs-log-del (previous step)

⊦ abs-log(nx, gstore -- n) = abs-log(nx, gstore), n ∈ nx

Heuristic structural induction applied rule structural induction

And obtained the following new goals

Proof step 4:
∀ gstore, n. abs-log(nx0, gstore -- n) = abs-log(nx0, gstore) ∨ n ∈ nx0 ⊦ abs-log(lnum + nx0, gstore -- n) = abs-log(lnum + nx0, gstore), n ∈ lnum + nx0

Rule argument

term: nx

Additional information

Used simplifier rules: abs-log-base: ⊦ abs-log([], gstore) = [];%nat-list freely generated by [], +;;