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Proof step 12 from proof union-init (previous step)

⊦ ¬ initerror(class, st ∪ st0) ∧ ¬ initundone(class, st0) ↔ ¬ initerror(class, st0) ∧ ¬ initundone(class, st0), jvmref ∈ st

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 4:
⊦ initerror(class1, st) ↔ (jvmref -- mkfs(class1, void_type, `initstate' .field) ') × initval(error) ∈ st
Proof step 11:
⊦ ¬ (jvmref -- mkfs(class, void_type, `initstate' .field) ') × initval(error) ∈ st ∪ st0 ∧ ¬ initundone(class, st0) ↔ ¬ initerror(class, st0) ∧ ¬ initundone(class, st0), jvmref ∈ st

Rule argument

[speclemmaarg: , initerror(class1, st) ↔ (jvmref -- mkfs(class1, void_type, `initstate' .field) ') × initval(error) ∈ st ,[st, class1] → [st ∪ st0, class] ,F ,storefuns , ,initerror ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st ∪ st0, class)]]