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Proof step 52 from proof compat-addclass (previous step)

sk = fs ', fs = mkfs(class, ty, fieldvar), fis .keys = statfields(class0), sk ∈ statfields(class0), compatmode(str, st), compatrefs(str, st), okfieldinits(class0, fis), initdone(class0, addclass(class0, fis, st)), tdname∃(str, class0), is_fskey(sk), (class∃(str, class0) ∨ interface∃(str, class0)) ∧ initdone(class0, st) → compatfields(str, jvmref, statfields(class0), st) ⊦ compat(str, addclass(class0, fis, st)[jvmref -- sk], ty, addclass(class0, fis, st)) ∧ jvmref -- sk ∈ addclass(class0, fis, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 51:
fis .keys = statfields(class0), mkfs(class, ty, fieldvar) ' ∈ statfields(class0), compatmode(str, st), compatrefs(str, st), okfieldinits(class0, fis), initdone(class0, addclass(class0, fis, st)), tdname∃(str, class0), (class∃(str, class0) ∨ interface∃(str, class0)) ∧ initdone(class0, st) → compatfields(str, jvmref, statfields(class0), st) ⊦ compat(str, addclass(class0, fis, st)[jvmref -- mkfs(class, ty, fieldvar) '], ty, addclass(class0, fis, st)) ∧ jvmref -- mkfs(class, ty, fieldvar) ' ∈ addclass(class0, fis, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_fskey(fs ')])]]