| ⊦ validrefs(str, refs, ty, st) ∧ ¬ junkref(str, refs .first, st) ∧ fs ' ≠ _type ∧ is_arraytype(st[r0 -- _type] .type) ∧ fs ' ≠ _length ∧ refs ≠ [] ∧ ¬ dups(refs .butlast) → validrefs(str, refs, ty, st[r0 -- fs ', val]) |
is_arraytype(st[r0 -- _type] .type), validrefs(str, refs, ty, st) ⊦ fs ' = _type, fs ' = _length, refs = [], junkref(str, refs .first, st), dups(refs .butlast), validrefs(str, refs, ty, st[r0 -- fs ', val])
[[CONCRETESIMPRULES : ()]]