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Proof step 26 from proof add-gft (previous step)

¬ (¬ is_classtype(ty0) ∧ ¬ is_arraytype(ty0)) ⊦ r = r0, r0 -- mkfs(class, ty0, fieldvar) ' ∈ st ∧ oktype(st[r0 -- mkfs(class, ty0, fieldvar) '], ty0, addarray(r, ty, vals, st)) ↔ r0 -- mkfs(class, ty0, fieldvar) ' ∈ st ∧ oktype(st[r0 -- mkfs(class, ty0, fieldvar) '], ty0, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 25:
⊦ r0 -- mkfs(class, ty0, fieldvar) ' ∈ st ∧ oktype(st[r0 -- mkfs(class, ty0, fieldvar) '], ty0, addarray(r, ty, vals, st)) ↔ r0 -- mkfs(class, ty0, fieldvar) ' ∈ st ∧ oktype(st[r0 -- mkfs(class, ty0, fieldvar) '], ty0, st), r = r0, ¬ is_classtype(ty0) ∧ ¬ is_arraytype(ty0)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]