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Proof step 6 from proof ac-init-05 (previous step)

⊦ class1 = class2, initerror(class1, addclass(class2, fis, st)) ↔ initerror(class1, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ initerror(class1, st) ↔ (jvmref -- mkfs(class1, void_type, `initstate' .field) ') × initval(error) ∈ st
Proof step 5:
⊦ class1 = class2, (jvmref -- mkfs(class1, void_type, `initstate' .field) ') × initval(error) ∈ addclass(class2, fis, st) ↔ initerror(class1, st)

Rule argument

[speclemmaarg: , initerror(class1, st) ↔ (jvmref -- mkfs(class1, void_type, `initstate' .field) ') × initval(error) ∈ st ,[st, class1] → [addclass(class2, fis, st), class1] ,F ,storefuns , ,initerror ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (addclass(class2, fis, st), class1)]]