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Proof step 7 from proof add-update-same (previous step)

fv = sk × val, ∀ r, st, class. update(r, fis0, st[r -- _type, typeval(mkclasstype(class))]) = addobj(r, class, fis0, st) ⊦ update(r, fv ' + fis0, st[r -- _type, typeval(mkclasstype(class))]) = (addobj(r, class, fis0, st)[r -- sk, val])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 6:
∀ r, st, class. update(r, fis0, st[r -- _type, typeval(mkclasstype(class))]) = addobj(r, class, fis0, st) ⊦ update(r, (sk × val) ' + fis0, st[r -- _type, typeval(mkclasstype(class))]) = (addobj(r, class, fis0, st)[r -- sk, val])

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]