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Proof step 6 from proof initsubset-addclass (previous step)

fis .keys = statfields(class), validstatfield(str, mkfs(class, ty, fieldvar) ', st), mkfs(class, ty, fieldvar) ' ∈ statfields(class0), tdname∃(str, class0), initdone(class0, st), validfieldinits(str, fis, st), initundone(class, st) ⊦ class = `java.lang.Object' .class, validstatfield(str, mkfs(class, ty, fieldvar) ', addclass(class, fis, st))

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 5:
⊦ class ≠ class0 → ¬ mkfs(class0, ty, fieldvar) ' ∈ statfields(class)

Rule argument

[speclemmaarg: ,class ≠ class0 → ¬ mkfs(class0, ty, fieldvar) ' ∈ statfields(class) ,[class, fieldvar, ty, class0] → [class0, fieldvar, ty, class] ,F ,addfuns , ,statfields-same-class-01 ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ initundone(class1, st) → ¬ initdone(class1, st)])], [EXTRATERMS : (class0, fieldvar, ty, class)]]