In the literature on persons and their identity, it is customary to distinguish the issue of the nature of personhood—“What is a person?”—from the issue of personal identity—“What are the persistence conditions of a person over time?” In recent years, Eric Olson and Lynne Rudder Baker have brought to the forefront of discussion the related, but often neglected, issue of our essence: “What are w...

We analyze a model of conflict with endogenous choice of effort, where subsets of the contenders may force the resolution to be sequential: First the alliance fights it out with the rest and – in case they win – later they fight it out among themselves. For three-player games, we find that it will not be in the interest of any two of them to form an alliance. We obtain this result under two dif...

A b s t r a c t. This paper deals with axiomatization problems for varieties of residuated meet semilattice-ordered monoids (RSs). An internal characterization of the finitely subdirectly irreducible RSs is proved, and it is used to investigate the varieties of RSs within which the finitely based subvarieties are closed under finite joins. It is shown that a variety has this closure property if...