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Proof step 14 from proof reachable-addnewtonull-rev (previous step)

ce.nxt = null, (H[r].nxt ' + x0).last ∈ H[r2, ce], (H[r].nxt ' + x0).last ∈ H, path(H[r].nxt ' + x0, H[r2, ce]), r ∈ H, ∀ ce0, r1, H0, r3. ce0.nxt = null ∧ path(r1 ' + x0, H0[r3, ce0]) ∧ (r1 ' + x0).last ∈ H0 → r3 ∈ H0 ∨ path(r1 ' + x0, H0) ⊦ r = null, r2 ∈ H, path(H[r].nxt ' + x0, H)

Heuristic quantifier closing applied rule all left

And closed the goal!

Rule argument

pos: left 6 terms: ce, H[r].nxt, H, r2

Additional information

Used terms: ce, H[r].nxt, H, r2