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Theorem unchNorec-validrefs-pathex

⊦ validrefs(str, refs, ty, st) ∧ r = refs .first ∧ r0 ∈ refs ∧ (∀ r. r ∈ refs → unchangedNorec(r, st, st0)) ∧ refs ≠ [] → path∃(str, r, r0, st0)

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