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Proof step 24 from proof k-reachable-def (previous step)

path(H[r].nxt ' + x0, H), reachable-n(H, n, H[r].nxt, x0.last), r ∈ H ⊦ r = null, x0 = [], reachable-1(H, r, H[r].nxt) ∧ reachable-n(H, n, H[r].nxt, x0.last)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 25:
path(H[r].nxt ' + x0, H), reachable-n(H, n, H[r].nxt, x0.last), r ∈ H ⊦ r = null, x0 = [], reachable-1(H, r, H[r].nxt)

Proof step 24 from proof k-reachable-def (previous step)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

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