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Proof step 20 from proof okarray-primput (previous step)

0 ≤ j0, 0 ≤ st[r -- _length] .intval, r ∈ st, j0 < st[r -- _length] .intval, is_arrayref(r, st[r -- _length] .intval, st), r -- _length ∈ st, is_arraytype(st[r -- _type] .type), is_typevalue(st[r -- _type]), r -- _type ∈ st, j < st[r -- _length] .intval, okprimtype(val, st[r -- _type] .type .type), 0 < st[r -- _length] .intval, 0 ≤ j, ∀ j1. ¬ j1 < 0 ∧ ¬ st[r -- _length] .intval ≤ j1 → oktype(st[r -- j1 '], st[r -- _type] .type .type, st) ⊦ r = jvmref, oktype((j0 = j ⊃ val; st[r -- j0 ']), st[r -- _type] .type .type, st)

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Rule argument

[speclemmaarg: ,is_arraytype(ty) → (ty0 = ty .type ↔ ty = mkarraytype(ty0)) ,[ty, ty0] → [st[r -- _type] .type, ty] ,T ,javatype , ,elim-01 ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPELIM : ⊦ is_arraytype(ty) → ( ty0 = ty .type ↔ ty = mkarraytype(ty0))])], [EXTRATERMS : (st[r -- _type] .type, ty)]]