Multisets don’t track identity and effectively bake agent-neutrality into them, so they don’t have enough structure to express the Pareto principle properly. For Pareto, it’s better to represent your worlds/universes/outcomes as vectors with a component for each individual, or functions mappings identities (or labels) to real numbers. Your set of identities can just be the natural numbers, or integers or whatever.
Multisets don’t track identity and effectively bake agent-neutrality into them, so they don’t have enough structure to express the Pareto principle properly. For Pareto, it’s better to represent your worlds/universes/outcomes as vectors with a component for each individual, or functions mappings identities (or labels) to real numbers. Your set of identities can just be the natural numbers, or integers or whatever.