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Proof step 22 from proof add-gft (previous step)

∃ ty1. ty0 = mkarraytype(ty1) ⊦ 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 21:
⊦ r = r0, r0 -- mkfs(class, mkarraytype(ty1), fieldvar) ' ∈ st ∧ oktype(st[r0 -- mkfs(class, mkarraytype(ty1), fieldvar) '], mkarraytype(ty1), addarray(r, ty, vals, st)) ↔ r0 -- mkfs(class, mkarraytype(ty1), fieldvar) ' ∈ st ∧ oktype(st[r0 -- mkfs(class, mkarraytype(ty1), fieldvar) '], mkarraytype(ty1), st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]