  But it can be shown that any \(V\)-function that satisfies continuity and monotonicity must have generation discounting built into it. It would seem the real numbers are not rich enough to accommodate infinite well-being streams in a manner that respects continuity and monotonicity while awarding the well-beings of all generations equal weight. Proof of the proposition is in Diamond (1965), and was attributed by the author to Menahem Yaari. So we now introduce positive well-being discounting in the \(V\)-function and formulate Ramsey Mark III.