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Proof step 5 from proof add-in-03 (previous step)

r -- sk ∈ st, r ∈ st, ∀ r, sk, st, r0, class1. r -- sk ∈ st ∧ r ∈ st → r -- sk ∈ addobj(r0, class1, fis0, st) ⊦ r -- sk ∈ addobj(r0, class1, fv ' + fis0, st)

User applied rule structural induction

And obtained the following new goals

Proof step 4:
⊦ r -- sk0 ∈ st ∧ r ∈ st ∧ (∀ r, sk, st, r0, class1. r -- sk ∈ st ∧ r ∈ st → r -- sk ∈ addobj(r0, class1, fis0, st)) → r -- sk0 ∈ addobj(r0, class1, (sk × val) ' + fis0, st)

Rule argument

[VARWITHFMAVARSARG : fv, ()]

Additional information

[[CONCRETESIMPRULES : ([CSIMPGEN : fieldvalue generated by ×;])]]