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Proof step 4 from proof validsubset-addobj-01 (previous step)

fis .keys = instfields(class), newref(r, st), class∃(str, class), validfieldinits(fis, st), junkref(str, r0, st), sk × refval(r0) ∈ fis ⊦ r = jvmref, valid⊆(str, st, addobj(r, class, fis, st)), is_abstract(class), ∃ sk. sk × refval(r0) ∈ fis

Heuristic quantifier closing applied rule exists right

And closed the goal!

Rule argument

[EXRARG : pos: right 4, [QUANTTERMLIST : (sk)]]

Additional information

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