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Proof step 56 from proof validrefs-primarray (previous step)

is_primtype(ty) ⊦ validrefs(str, refs, mkarraytype(ty), st) ↔ refs = [] ∨ refs = jvmref ' ∨ okarray(refs .first, ty, st) ∧ refs .rest = []

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Proof step 1:
⊦ validrefs(str, [], ty, st)
Proof step 55:
refs = r + refs0 ∧ refs ≠ [], is_primtype(ty) ⊦ validrefs(str, refs, mkarraytype(ty), st) ↔ refs = [] ∨ refs = jvmref ' ∨ okarray(r, ty, st) ∧ refs0 = []

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)]]