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Proof step 27 from proof addarray-identity (previous step)

st[r -- _type] .type = mkarraytype(ty), 0 < st[r -- _length] .intval, 0 ≤ st[r -- _length] .intval, i < st[r -- _length] .intval, 0 ≤ i, is_array(r, st), i→n(i) < # getarray(r, st) ⊦ getarray(r, st) = [], r -- i ' ∈ st

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

[speclemmaarg: , 0 ≤ st[r -- _length] .intval → # getarray(r, st) = i→n(st[r -- _length] .intval) ,[st, r] → [st, r] ,F ,storearrays , ,getarray-length ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, r)]]