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Proof step 11 from proof isobj-union-01 (previous step)

st[r -- _type] = typeval(mkclasstype(class)), r -- _type ∈ st, ∀ sk. sk ∈ instfields(class) → goodfieldandtype(r, sk, st), r ∈ st ⊦ r = jvmref, ∀ sk. sk ∈ instfields(class) → goodfieldandtype(r, sk, st0 ∪ st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 10:
st[r -- _type] = typeval(mkclasstype(class)), r ∈ st, r -- _type ∈ st, sk ∈ instfields(class), ∀ sk. sk ∈ instfields(class) → goodfieldandtype(r, sk, st) ⊦ r = jvmref, goodfieldandtype(r, sk, st0 ∪ st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]