Theodore Scaltsas

In Republic V, Plato distinguishes two different cognitive powers, knowledge and belief, which operate differently on different types of object. I argue that in Republic VI Plato modifies this account, and claims that there is a single cognitive power, which under different circumstances behaves either as knowledge or as belief. I show that the circumstances which turn true belief into knowledge are the provision of an individuation account of the object of belief, which reveals the ontological status and the nature of the object. Plato explores many alternative candidates of individuation accounts of objects of true belief, which he discards. I conclude with a Platonic sketch of a teleological account of individuation which would satisfy his requirements of turning true belief into knowledge

ABSTRACT Parallel processing systems can carry out computational tasks which would be impossible to be carried out by sequential systems. Cognitive psychologists are discovering that brains do not operate on a sequential ordering of tasks, but along parallel processing models. Sequential ordering is abandoned in the new generation computers, which are being designed on evolving parallel processing models. My proposal consists in applying the parallel processing principles to the state, creating a ‘parallel governing’model for the decision‐making procedures at the political level, in place of the present sequentially ordered procedures. I describe the main principles of current parallel processing models, and use them towards the creation of a parallel governing system. The most fundamental principle is the ‘De‐Centralisation Principle’, which requires that there be no centralised unit with special rights to information, or to policy‐, and decision‐making authority. In parallel governing, political and moral principles are built into the structure of the system, which consists of units of specialised interests and powers, with specialised channels of communication between them. I close by delineating the main differences between parallel governing and Nozick's utopia and Hayek's neo‐libertarianism.

In Republic V, Plato distinguishes two different cognitive powers, knowledge and belief, which operate differently on different types of object. I argue that in Republic VI Plato modifies this account, and claims that there is a single cognitive power, which under different circumstances behaves either as knowledge or as belief. I show that the circumstances which turn true belief into knowledge are the provision of an individuation account of the object of belief, which reveals the ontological status and the nature of the object. Plato explores many alternative candidates of individuation accounts of objects of true belief, which he discards. I conclude with a Platonic sketch of a teleological account of individuation which would satisfy his requirements of turning true belief into knowledge.

The Socratic discussion in the Hippias Major, 300-303, is not a passing comment on plural reference; it is a theory of plural subjecthood. It has escaped attention because it is a small part of a larger complex argument on the topic of which pleasures are fine. Socrates’s theory is further concealed by the fact that it is presented as an antithesis between Hippias and himself, whereas in fact, Hippias’s position becomes part of Socrates’s theory. I begin by examining Hippias’s position, and subsequently Socrates’ criticism of it. I then turn to Socrates’s further proposal, and the development of a theory of plural subjects that incorporates elements of Hippias’s position, and Socrates’s own. At the end, I address the question of the ontology of plural subjects. I argue that the key to sharing a property between subjects is not in the way that the plural terms refer to these subjects, or in any decomposition of the commonly owned property instance into parts distributed to these subjects. Rather, I follow Socrates in finding the common ownership of a property instance central to plural subjecthood, and develop an account of how this metaphysical function can be performed by the plural subjects without threatening their distinctness and plurality.

Plato was the first philosopher to discover the metaphysical phenomenon of plural-subjects and plural-predication; e.g. you and I are two, but neither you, nor I are two. I argue that Plato devised an ontology for plural-predication through his Theory of Forms, namely, plural-partaking in a Form. Furthermore, I argue that Plato used plural-partaking to offer an ontology of related individuals without reifying relations. My contention is that Plato’s theory of plural-relatives has evaded detection in the exegetical literature because his account of plural-subjects through the Theory of Forms had not been recognised for what it is. I further submit that Plato’s handling of related individuals through plural-predication is not only a “first” in philosophy, but also an “only”, having remained a unique account in the metaphysics of relations. I hope that Plato’s account will introduce a fresh approach to contemporary debates on the subject.