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Proof step 15 from proof is_valid_ref-addobj (previous step)

⊦ r = r0, (is_obj(r, st) ∨ is_array(r, st)) ∧ ( class+∃(str, st[r -- _type] .type .class) ∧ ¬ is_abstract(st[r -- _type] .type .class) ∧ is_obj(r, st) ∨ type∃(str, (addobj(r0, class, fis, st)[r -- _type]) .type) ∧ (addobj(r0, class, fis, st)[r -- _type]) .type .jtelemtype ≠ void_type ∧ (addobj(r0, class, fis, st)[r -- _type]) .type .jtelemtype ≠ abstract_type ∧ is_array(r, addobj(r0, class, fis, st))) ↔ is_obj(str, r, st) ∨ is_array(str, r, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 9:
⊦ r ≠ r0 → (addobj(r, class1, fis, st)[r0 -- sk]) = st[r0 -- sk]
Proof step 10:
⊦ r ≠ r0 → (is_array(r, addobj(r0, class, fis, st)) ↔ is_array(r, st))
Proof step 14:
⊦ r = r0, (is_obj(r, st) ∨ is_array(r, st)) ∧ ( class+∃(str, st[r -- _type] .type .class) ∧ ¬ is_abstract(st[r -- _type] .type .class) ∧ is_obj(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)) ↔ is_obj(str, r, st) ∨ is_array(str, r, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]