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Proof step 26 from proof add-dupput (previous step)

sk ∈ fis ⊦ ∀ rk. (rk ∈ addobj(r, class1, fis + (sk × val) ' + fis0, st) ↔ rk ∈ addobj(r, class1, fis + fis0, st)) ∧ (addobj(r, class1, fis + (sk × val) ' + fis0, st)[rk]) = (addobj(r, class1, fis + fis0, st)[rk])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 25:
sk ∈ fis ⊦ (rk ∈ addobj(r, class1, fis + (sk × val) ' + fis0, st) ↔ rk ∈ addobj(r, class1, fis + fis0, st)) ∧ (addobj(r, class1, fis + (sk × val) ' + fis0, st)[rk]) = (addobj(r, class1, fis + fis0, st)[rk])

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]