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Proof step 20 from proof fits-in (previous step)

st[r -- sk] = refval(r1), st[r -- _type] .type = mkclasstype(class), sk ∈ instfields(class), fits(r1, sks0, st), r -- sk ∈ st, r ∈ st, is_obj(str, r, st), ∀ str0, r0, st0. ¬ junkref(str0, r0, st0) ∧ fits(r0, sks0, st0) → r0 -- sks0 ∈ st0 ⊦ sks0 = [], r = jvmref, junkref(str, r, st), r1 -- sks0 ∈ st

User applied rule all left

And obtained the following new goals

Proof step 19:
st[r -- sk] = refval(r1), st[r -- _type] .type = mkclasstype(class), sk ∈ instfields(class), fits(r1, sks0, st), r -- sk ∈ st, r ∈ st, is_obj(str, r, st), ¬ junkref(str, r1, st) ∧ fits(r1, sks0, st) → r1 -- sks0 ∈ st, ∀ str0, r0, st0. ¬ junkref(str0, r0, st0) ∧ fits(r0, sks0, st0) → r0 -- sks0 ∈ st0 ⊦ sks0 = [], r = jvmref, junkref(str, r, st), r1 -- sks0 ∈ st

Rule argument

[EXRARG : pos: left 8, [extquanttermlist: (str, r1, st) abort:F , discard:F , computed:T ]]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (str, r1, st)]]