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Proof step 22 from proof fits-subset (previous step)

st0[r -- _type] .type = mkclasstype(class), st0[r -- sk] = refval(r0), r -- _type ∈ st0, is_obj(str, r, st0), st0 ⊆ st, fits(r0, sks0, st), sk ∈ instfields(class), r ∈ st0, r -- sk ∈ st0, ∀ st0, st, r, str. st0 ⊆ st ∧ fits(r, sks0, st) → junkref(str, r, st0) ∨ fits(r, sks0, st0) ⊦ r = jvmref, junkref(str, r, st0), fits(r0, sks0, st0)

User applied rule all left

And obtained the following new goals

Rule argument

[EXRARG : pos: left 10, [extquanttermlist: (st0, st, r0, str) abort:F , discard:T , computed:T ]]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st0, st, r0, str)]]