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Proof step 1 from proof reachable-n-trans (conclusion)

⊦ reachable-n(H, n, r, r0) ∧ reachable-n(H, n0, r0, r1) → (¬ reachable-n(H, n + n0, r, r1) ↔ false)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 2:
reachable-n(H, n, r, r0), reachable-n(H, n0, r0, r1) ⊦ reachable-n(H, n + n0, r, r1)

Rule argument

Additional information