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Proof step 13 from proof validref-put-01 (previous step)

⊦ r = r0, r0 ≠ jvmref ∧ r0 -- _type ∈ st[r -- sk, val] ∧ is_typevalue(st[r -- sk, val][r0 -- _type]) ∧ is_classtype((st[r -- sk, val][r0 -- _type]) .type) ∧ is_obj(r0, (st[r -- sk, val][r0 -- _type]) .type .class, st[r -- sk, val]) ∨ is_array(r0, st[r -- sk, val]) ↔ is_obj(r0, st) ∨ is_array(r0, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 4:
⊦ r ≠ r0 → (is_obj(r, class, st[r0 -- sk, val]) ↔ is_obj(r, class, st))
Proof step 12:
⊦ r = r0, r0 ≠ jvmref ∧ r0 -- _type ∈ st ∧ is_typevalue(st[r0 -- _type]) ∧ is_classtype(st[r0 -- _type] .type) ∧ is_obj(r0, st[r0 -- _type] .type .class, st) ∨ is_array(r0, st[r -- sk, val]) ↔ is_obj(r0, st) ∨ is_array(r0, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ r ≠ r0 → (st[r0 -- sk0, val][r -- sk]) = st[r -- sk]], [CSIMPSEQ : ⊦ r ≠ r0 → ( r -- sk ∈ st[r0 -- sk0, val] ↔ r -- sk ∈ st)])]]