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Proof step 9 from proof okarrays-all (previous step)

sk0 .fs = mkfs(class0, ty0, fieldvar0), sk .fs = mkfs(class, ty, fieldvar), sk0 × val0 ∈ fis0, ∀ sk1, val1. sk1 × val1 ∈ fis0 ∨ sk1 = sk ∧ val1 = val → is_integervalue(val1) ∧ is_fskey(sk1) ∧ is_arraytype(sk1 .fs .type) ∧ okarray(st[r -- sk1], sk1 .fs .type .type, val1 .intval, st) ⊦ okarrays(r, fis0, st), is_integervalue(val0) ∧ ¬ is_indexkey(sk0) ∧ is_arraytype(ty0) ∧ okarray(st[r -- sk0], ty0 .type, val0 .intval, st)

User applied rule all left

And closed the goal!

Rule argument

[EXRARG : pos: left 4, [extquanttermlist: (sk0, val0) abort:F , discard:F , computed:T ]]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_indexkey(sk) → ¬ is_fskey(sk)], [CSIMPSEQ : ⊦ ¬ is_indexkey(sk) ↔ is_fskey(sk)], [CSIMPSEQ : ⊦ mkfs(class, ty, fieldvar) .type = ty])], [EXTRATERMS : (sk0, val0)]]