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Proof step 26 from proof validstatfield-subspec-samesubclasses (previous step)

is_fskey(mkfs(class, ty, fieldvar) ') ∧ mkfs(class, ty, fieldvar) ' ∈ statfields(mkfs(class, ty, fieldvar) ' .fs .class) ∧ tdname∃(str0, mkfs(class, ty, fieldvar) ' .fs .class) ∧ (initdone(mkfs(class, ty, fieldvar) ' .fs .class, st) → validfield(str0, jvmref, mkfs(class, ty, fieldvar) ', st)), same-subclasses-contains(ty .jtelemtype .class, str, str0), type∃(str, ty), tdname∃(str, class) ⊦ (initdone(class, st) → validfield(str, jvmref, mkfs(class, ty, fieldvar) ', st)) ∧ mkfs(class, ty, fieldvar) ' ∈ statfields(class)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 25:
same-subclasses-contains(ty .jtelemtype .class, str, str0), type∃(str, ty), tdname∃(str, class), mkfs(class, ty, fieldvar) ' ∈ statfields(class), tdname∃(str0, class), initdone(class, st), validfield(str0, jvmref, mkfs(class, ty, fieldvar) ', st) ⊦ validfield(str, jvmref, mkfs(class, ty, fieldvar) ', st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ mkfs(class, ty, fieldvar) .class = class], [CSIMPSEQ : ⊦ fs ' .fs = fs], [CSIMPSEQ : ⊦ is_fskey(fs ')])]]