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Proof step 11 from proof junkref-put-norefval-equiv (previous step)

okval(st[r1 -- mkfs(class, ty, fieldvar) '], ty), r1 -- mkfs(class, ty, fieldvar) ' ∈ st, okval(val, ty), r1 ∈ st, junkrefs(str, refs, st[refs .first -- _type] .type, st) ⊦ mkfs(class, ty, fieldvar) ' = _length, ty = void_type, refs = [], is_referencevalue(val), junkref(str, refs .first, st[r1 -- mkfs(class, ty, fieldvar) ', val])

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Proof step 10:
refs = r + refs0, okval(st[r1 -- mkfs(class, ty, fieldvar) '], ty), r1 -- mkfs(class, ty, fieldvar) ' ∈ st, okval(val, ty), r1 ∈ st, junkrefs(str, refs, st[r -- _type] .type, st) ⊦ mkfs(class, ty, fieldvar) ' = _length, ty = void_type, refs = [], is_referencevalue(val), junkref(str, r, st[r1 -- mkfs(class, ty, fieldvar) ', val])

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)]]