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Proof step 20 from proof ac-bad-03 (previous step)

fv = sk × val0, is_fskey(sk), ∀ class1, i, val, st. addclass(class1, fis0 + (i ' × val) ', st) = addclass(class1, fis0, st) ⊦ addclass(class1, (fv ' + fis0) + (i ' × val) ', st) = addclass(class1, fv ' + fis0, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 19:
is_fskey(sk), ∀ class1, i, val, st. addclass(class1, fis0 + (i ' × val) ', st) = addclass(class1, fis0, st) ⊦ addclass(class1, ((sk × val0) ' + fis0) + (i ' × val) ', st) = addclass(class1, (sk × val0) ' + fis0, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]