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Proof step 17 from proof isobj-subset (previous step)

st1[r -- _type] = typeval(mkclasstype(class)), st[r -- _type] = typeval(mkclasstype(class)), r -- _type ∈ st, r -- _type ∈ st1, r ∈ st, r ∈ st1, sk ∈ instfields(class), ∀ rk. rk ∈ st → rk ∈ st1 ∧ st[rk] = st1[rk], ∀ sk. sk ∈ instfields(class) → goodfieldandtype(r, sk, st) ⊦ r = jvmref, goodfieldandtype(r, sk, st1)

User applied rule all left

And obtained the following new goals

Proof step 16:
st1[r -- _type] = typeval(mkclasstype(class)), st[r -- _type] = typeval(mkclasstype(class)), r -- _type ∈ st, r -- _type ∈ st1, r ∈ st, r ∈ st1, sk ∈ instfields(class), ∀ rk. rk ∈ st → rk ∈ st1 ∧ st[rk] = st1[rk], sk ∈ instfields(class) → goodfieldandtype(r, sk, st), ∀ sk. sk ∈ instfields(class) → goodfieldandtype(r, sk, st) ⊦ r = jvmref, goodfieldandtype(r, sk, st1)

Rule argument

[EXRARG : pos: left 9, [extquanttermlist: (sk)abort:F, discard:F, computed:T]]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (sk)]]