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Proof step 8 from proof at-other-28 (conclusion)

⊦ (st[_out, val][r -- mkfs(class, boolean_type, fieldvar) ']) = st[r -- mkfs(class, boolean_type, fieldvar) ']

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 1:
⊦ (st[rk0, val][rk]) = ((rk = rk0 ⊃ val; st[rk]))
Proof step 7:
⊦ ((r -- mkfs(class, boolean_type, fieldvar) ' = _out ⊃ val; st[r -- mkfs(class, boolean_type, fieldvar) '])) = st[r -- mkfs(class, boolean_type, fieldvar) ']

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]