 (3) For all "x" ≥ "y" in "P" and all α, β in "S" such that μ("x","y") ≤ α ∨ β, there are a positive integer "n" and elements "x"="z"0 ≥ "z"1 ≥ ... ≥ "z"2"n"="y" such that μ("z"i","z"i+1") ≤ α (resp., μ("z"i","z"i+1") ≤ β) whenever "i" < 2"n" is even (resp., odd).