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Proof step 159 from proof compat-addobj (previous step)

st[r0 -- _length] = intval(i), st[r0 -- _type] = typeval(mkarraytype(ty0)), 0 < i, 0 ≤ j, j < i, 0 ≤ i, is_predefined_class(class), newref(r, st), compatmode(str, st), compatstatic(str, st), r0 -- _type ∈ st, r0 ∈ st, is_arrayref(r0, i, st), r0 -- _length ∈ st, ¬ has_classtype(ty0) ∨ tdname+∃(str, ty0 .jtelemtype .class), ∀ j0. ¬ j0 < 0 ∧ ¬ i ≤ j0 → compat(str, st[r0 -- j0 '], ty0, st) ⊦ r = jvmref, r0 = jvmref, is_referencevalue(st[r0 -- j ']), okval(st[r0 -- j '], ty0)

User applied rule all left

And obtained the following new goals

Proof step 158:
⊦ ¬ is_referencevalue(val) → (compat(str, val, ty, st) ↔ okval(val, ty))

Rule argument

[EXRARG : pos: left 16, [extquanttermlist: (j)abort:F, discard:F, computed:F]]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ i ≤ j → (¬ ¬ j < i ↔ false)], [CSIMPSEQ : ⊦ i < j → (¬ ¬ j ≤ i ↔ false)])], [EXTRATERMS : (j)]]