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Proof step 16 from proof ac-shift (previous step)

sk .fs = mkfs(class, ty0, fieldvar0), is_indexkey(sk), ∀ class2, class1, st, ty, fieldvar, val. class2 = class1 ∨ (addclass(class1, fis0, st)[jvmref -- mkfs(class2, ty, fieldvar) ', val]) = addclass(class1, fis0, st[jvmref -- mkfs(class2, ty, fieldvar) ', val]) ⊦ class2 = class1, (addclass(class1, fis0, st)[jvmref -- mkfs(class2, ty, fieldvar) ', val]) = addclass(class1, fis0, st[jvmref -- mkfs(class2, ty, fieldvar) ', val])

Heuristic quantifier closing applied rule all left

And closed the goal!

Rule argument

[EXRARG : pos: left 3, [QUANTTERMLIST : (class2, class1, st, ty, fieldvar, val)]]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (class2, class1, st, ty, fieldvar, val)]]