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Proof step 19 from proof isobj-put-index-01 (previous step)

⊦ r ≠ jvmref ∧ (r -- _type) × typeval(mkclasstype(class)) ∈ st[r0 -- i ', val] ∧ goodfieldsandtypes(r, instfields(class), st[r0 -- i ', val]) ↔ is_obj(r, class, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 18:
⊦ r ≠ jvmref ∧ r -- _type ∈ st ∧ st[r -- _type] = typeval(mkclasstype(class)) ∧ goodfieldsandtypes(r, instfields(class), st[r0 -- i ', val]) ↔ is_obj(r, class, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ (st[r -- i ', val][r0 -- _type]) = st[r0 -- _type]], [CSIMPSEQ : ⊦ r -- _type ∈ st[r0 -- i ', val0] ↔ r -- _type ∈ st], [CSIMPSEQ : ⊦ rk × val ∈ st ↔ rk ∈ st ∧ st[rk] = val])]]