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Proof step 10 from proof pathex-not-is-validref (previous step)

validrefs(str, refs, st[refs .first -- _type] .type, st) ⊦ refs .last = jvmref, refs = [], is_valid_ref(refs .last, st)

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Proof step 9:
refs = r + refs0, validrefs(str, refs, st[r -- _type] .type, st) ⊦ refs .last = jvmref, refs = [], is_valid_ref(refs .last, st)

Rule argument

[speclemmaarg: refs ≠ [] ,r = refs .first ∧ refs0 = refs .rest ↔ refs = r + refs0 ,[refs, r, refs0] → [refs, r, refs0] ,T ,list-data ,references-olista ,elim-list-c ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPELIM : refs ≠ [] ⊦ r = refs .first ∧ refs0 = refs .rest ↔ refs = r + refs0])], [EXTRATERMS : (refs, r, refs0)]]