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Proof step 22 from proof addarray-identity (previous step)

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

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 21:
st[r -- _type] .type = mkarraytype(ty), is_array(r, st), 0 ≤ i, i < st[r -- _length] .intval, 0 ≤ st[r -- _length] .intval, 0 < st[r -- _length] .intval, # getarray(r, st) ≤ i→n(i) ⊦ getarray(r, st) = [], r -- i ' ∈ st ∧ (getarray(r, st)[i→n(i)]) = st[r -- i ']

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ ¬ m < n ↔ n ≤ m])]]