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Proof step 15 from proof isvalidref-put-array-badindex (previous step)

i < 0 ⊦ (is_obj(r0, st) ∨ is_array(r0, st[r0 -- i ', val])) ∧ ( class+∃(str, st[r0 -- _type] .type .class) ∧ ¬ is_abstract(st[r0 -- _type] .type .class) ∧ is_obj(r0, st) ∨ type∃(str, st[r0 -- _type] .type) ∧ st[r0 -- _type] .type .jtelemtype ≠ void_type ∧ st[r0 -- _type] .type .jtelemtype ≠ abstract_type ∧ is_array(r0, st[r0 -- i ', val])) ↔ class+∃(str, st[r0 -- _type] .type .class) ∧ ¬ is_abstract(st[r0 -- _type] .type .class) ∧ is_obj(r0, st) ∨ type∃(str, st[r0 -- _type] .type) ∧ st[r0 -- _type] .type .jtelemtype ≠ void_type ∧ st[r0 -- _type] .type .jtelemtype ≠ abstract_type ∧ is_array(r0, st)

User applied rule case distinction

And obtained the following new goals

Rule argument

[CASEDARG : pos: right 1, ()]

Additional information

[[CONCRETESIMPRULES : ()]]