| ⊦ r = r0, is_array(str, r, addarray(r0, ty0, vals, st)) ↔ is_array(str, r, st) |
⊦ is_array(str, r, st) ↔ type∃(str, st[r -- _type] .type) ∧ st[r -- _type] .type .jtelemtype ≠ void_type ∧ st[r -- _type] .type .jtelemtype ≠ abstract_type ∧ is_array(r, st)
⊦ r = r0, type∃(str, (addarray(r0, ty0, vals, st)[r -- _type]) .type) ∧ (addarray(r0, ty0, vals, st)[r -- _type]) .type .jtelemtype ≠ void_type ∧ (addarray(r0, ty0, vals, st)[r -- _type]) .type .jtelemtype ≠ abstract_type ∧ is_array(r, addarray(r0, ty0, vals, st)) ↔ is_array(str, r, st)
[[CONCRETESIMPRULES : ()], [EXTRATERMS : (addarray(r0, ty0, vals, st), r, str)]]