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Proof step 1 from proof reachnext (conclusion)
⊦ reachable(r0, H[r0].nxt, H) ↔ ¬ ¬(r0 ≠ null ∧ r0 ∈ H ∧ H[r0].nxt ∈ H ∧ H[r0].nxt ≠ null)
Heuristic simplifier applied rule simplifier
And obtained the following new goals
Proof step 2
:
⊦ reachable(r0, H[r0].nxt, H) ↔ r0 ≠ null ∧ r0 ∈ H ∧ H[r0].nxt ∈ H ∧ H[r0].nxt ≠ null
Rule argument
Additional information