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Proof step 7 from proof at-other-29 (previous step)

⊦ ((r -- mkfs(class, mkclasstype(class0), fieldvar) ' = _out ⊃ val; st[r -- mkfs(class, mkclasstype(class0), fieldvar) '])) = st[r -- mkfs(class, mkclasstype(class0), fieldvar) ']

Heuristic if-then-else split applied rule case distinction

And obtained the following new goals

Proof step 6:
r -- mkfs(class, mkclasstype(class0), fieldvar) ' = _out ⊦ val = st[r -- mkfs(class, mkclasstype(class0), fieldvar) ']

Rule argument

[CASEDARG : pos: right 1, ()]

Additional information

[[CONCRETESIMPRULES : ()]]