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Proof step 16 from proof ac-bad-03 (previous step)

sk = fs ', is_fskey(sk), ∀ class1, i, val, st. addclass(class1, fis0 + (i ' × val) ', st) = addclass(class1, fis0, st) ⊦ addclass(class1, fis0 + (i ' × val) ', st) = addclass(class1, fis0, st), fs .class = class1

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 15:
∀ class1, i, val, st. addclass(class1, fis0 + (i ' × val) ', st) = addclass(class1, fis0, st) ⊦ addclass(class1, fis0 + (i ' × val) ', st) = addclass(class1, fis0, st), fs .class = class1

Rule argument

[emptyarg]

Additional information

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