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Proof step 17 from proof cyclic-array (previous step)

st[r -- i '] = refval(r0), ∃ refs. dups(refs) ∧ refs .first = r0 ∧ validrefs(str, refs, st[r0 -- _type] .type, st), is_array(str, r, st), i < st[r -- _length] .intval, is_reftype(st[r -- _type] .type .type), st[r0 -- _type] .type ≤ st[r -- _type] .type .type, 0 ≤ i, 0 < st[r -- _length] .intval ⊦ cyclic(str, r, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 16:
st[r -- i '] = refval(refs .first), dups(refs), validrefs(str, refs, st[refs .first -- _type] .type, st), is_array(str, r, st), i < st[r -- _length] .intval, is_reftype(st[r -- _type] .type .type), st[refs .first -- _type] .type ≤ st[r -- _type] .type .type, 0 ≤ i, 0 < st[r -- _length] .intval ⊦ cyclic(str, r, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]