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Proof step 2 from proof addclass-no (conclusion)

class1 ≠ class2 ⊦ addclass(class1, (mkfs(class2, ty, fieldvar) ' × val) ' + fis, st) = addclass(class1, fis, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 1:
⊦ class1 ≠ class2 → addclass(class1, (mkfs(class2, ty, fieldvar) ' × val) ' + fis, st) = addclass(class1, fis, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ (fis + fis0) + fis1 = fis + fis0 + fis1])]]