| a = a ∨ a ∈ s0 → precise(aP(a)), ∀ a0. a0 ∈ s0 → precise(aP(a0)), ∀ s1, aP. # s1 < #(s0 ++ a) → (∀ a. a ∈ s1 → precise(aP(a))) → precise(aP ⊗_ s1) ⊦ precise(aP(a) * aP ⊗_ s0), a ∈ s0 |
precise(aP(a)), ∀ a0. a0 ∈ s0 → precise(aP(a0)), ∀ s1, aP. # s1 < #(s0 ++ a) → (∀ a. a ∈ s1 → precise(aP(a))) → precise(aP ⊗_ s1) ⊦ precise(aP(a) * aP ⊗_ s0), a ∈ s0