partitionRefinement-def
⊦ partitionRefinement(P, A, P0, A0, X)
↔ (∀ p. p ∈ P → (∃ p0. p0 ∈ P0 ∧ (⟦p⟧ (A) = ⟦p0⟧ (A0) ∩ list2set(X) ∨ ⟦p⟧ (A) = ⟦p0⟧ (A0) \ list2set(X))))
00partitionRefinement-def-proofpartitionRefinement-def-proof-info
The proof is valid.
NEWPARTS-theorem