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Proof step 2 from proof at-other-20 (conclusion)

⊦ ty ≠ void_type → (st[r -- mkfs(class, ty, fieldvar) ', val][r0 -- _type]) = st[r0 -- _type]

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 1:
⊦ (st[rk0, val][rk]) = ((rk = rk0 ⊃ val; st[rk]))

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ ty ≠ void_type → mkfs(class, ty, fieldvar) ' ≠ _type], [CSIMPSEQ : ⊦ r -- sk = r0 -- sk0 ↔ ¬ ¬ (r = r0 ∧ sk = sk0)])]]