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Proof step 9 from proof addobj-at-this (previous step)

⊦ (st[r -- _type, typeval(mkclasstype(class))][r -- sk, val][r -- (sk ' + sk0 ')]) = (st[r -- _type, typeval(mkclasstype(class))][r -- sk, val][val .refval -- sk0])

Heuristic weak cut applied rule cut formula

And obtained the following new goals

Proof step 5:
val .refval -- sk0 = r -- sk ⊦ (st[r -- _type, typeval(mkclasstype(class))][r -- sk, val][r -- (sk ' + sk0 ')]) = (st[r -- _type, typeval(mkclasstype(class))][r -- sk, val][val .refval -- sk0])
Proof step 8:
⊦ val .refval -- sk0 = r -- sk, (st[r -- _type, typeval(mkclasstype(class))][r -- sk, val][r -- (sk ' + sk0 ')]) = (st[r -- _type, typeval(mkclasstype(class))][r -- sk, val][val .refval -- sk0])

Rule argument

[fma-arg: val .refval -- sk0 = r -- sk]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRAFMAS : (val .refval -- sk0 = r -- sk)]]