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Proof step 22 from proof junkref-ac (previous step)

fv = sk × val, ∀ r, str, class, st. r = jvmref ∨ (junkref(str, r, addclass(class, fis0, st)) ↔ junkref(str, r, st)) ⊦ r = jvmref, junkref(str, r, addclass(class, fv ' + fis0, st)) ↔ junkref(str, r, st), ¬ is_indexkey(sk) ∧ sk .fs .class ≠ class

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 21:
∀ r, str, class, st. r = jvmref ∨ (junkref(str, r, addclass(class, fis0, st)) ↔ junkref(str, r, st)) ⊦ r = jvmref, junkref(str, r, addclass(class, (sk × val) ' + fis0, st)) ↔ junkref(str, r, st), ¬ is_indexkey(sk) ∧ sk .fs .class ≠ class

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]