Peter Simons

Formal ontology combines two ideas, one originating with Husserl, the other with Frege: that of ontology of the formal aspects of all objects, irrespective of their particular nature, and ontology pursued by employing the tools of modern formal disciplines, notably logic and semantics. These two traditions have converged in recent years and this is the first collection to encompass them as a whole in a single volume. It assembles essays from authors around the world already widely known for their work in formal ontology, and illustrates that through the application of formal methods the ancient discipline of ontology may be put on a firm methodological basis. The essays not only illuminate the nature of ontology and its relation to other areas, in language, logic and everyday life, but also demonstrate that common issues from the analytical and phenomenological traditions may be discussed without ideological barriers. Audience: advanced students of and specialists in philosophy, linguistics, cognitive science, computer science, database engineering.

French translation of "Truth-Makers" (1984). A realist theory of truth for a class of sentence holds that there are entities in virtue of which these sentences are true or false. We call such entities ‘truthmakers’ and contend that those for a wide range of sentences about the real world are moments (dependent particulars). Since moments are unfamiliar we provide a definition and a brief philosophical history, anchoring them in our ontology by showing that they are objects of perception. The core of our theory is the account of truthmaking for atomic sentences, in which we expose a pervasive ‘dogma of logical form’, which says that atomic sentences cannot have more than one truthmaker. The authors uphold the mutual independence of logical and ontological complexity. The theory is compared with that of Wittgenstein’s Tractatus, and the authors outline formal principles of truthmaking taking account of both kinds of complexity and suggesting how to overcome Wittgenstein’s problem of negation.

Frege's obscure key concept of the unsaturatedness of functions is clarified with the help of the concepts of dependent and independent parts and foundation relations used by Husserl in describing the ontology of complex wholes. Sentential unity in Frege, Husserl and Wittgenstein: all have a similar explanation. As applied to linguistic expressions, the terms 'unsaturated' and 'incomplete' are ambiguous: they may mean the ontological property of Unselbständigkeit, inability to exist alone, or the property of being what categorial grammar calls a functor. Separation of these two senses resolves a dispute between Dummett and Geach on the nature of predicates.

Russell wrote in 1918 in The Philosophy of Logical Atomism: When I speak of a fact ... I mean the kind of thing that makes a proposition true or false. If I say 'It is raining', what I say is true in a certain condition of weather and is false in other conditions of the weather. The condition of weather that makes my state­ment true (or false as the case may be), is what I should call a 'fact'. If I say, 'Socrates is dead', my statement will be true owing to a certain physiological occurrence which happened in Athens long ago. This classic statement of Russell's version of the correspondence theory of truth is defective on one point only: Russell was unwise to use the word 'fact'. Objects which perform the semantic role Russell accords to facts I shall call simply truth-makers.

Grenon and Smith (2004) propose a framework for the ontology of things in space and time involving and invoking the distinction between continuants and occurrents, which has become a key element of Basic Formal Ontology (BFO). The terminology of SNAP (from “snapshot:” state of a continuant at a time) and SPAN (how an occurrent develops over an interval or timespan) occurs in that paper’s title. While any commonsense ontology will have a place for both continuants and occurrents, there is much room for philosophical debate on whether one of them is more basic than the other, or can be reduced to the other, or whether they are equally fundamental, or whether they are two different perspectives on the same reality. Grenon and Smith opt for the last of these. They call the accounts of continuants (SNAP) and occurrents (SPAN) both “ontologies.” They do not have a single ontology of all that is in space and time. This dialog throws a few of the common arguments around a bit and comes to no sure conclusion. But one of the characters bears a faint resemblance to a certain Buffalonian philosopher.

In the twentieth century three approaches to modality dominated. One denied its legitimacy. A second made language the source of modality. The third treats possible worlds as the source of truth for modal propositions Meinong’s account of modality is quite different from all of these. Like the last it has an ontological basis, but it eschews worlds in favour of a rich one-world ontology of objects and states of affairs, many of which notoriously fail to exist and some even more notoriously fail to be possible. We lay out the ontological basis of Meinong’s system and show how he accommodates standard modal notions. Two peculiarities of his system are investigated: his preference of possibility over necessity, and his treatment of degrees of possibility, which allows him to subsume probability theory in his account.

Many mereological propositions are true contingently, so we are entitled to ask why they are true. One frequently given type of answer to such questions evokes truth-makers, that is, entities in virtue of whose existence the propositions in question are true. However, even without endorsing the extreme view that all contingent propositions have truth-makers, it turns out to be puzzlingly hard to provide intuitively convincing candidate truth-makers for even a core class of basic mereological propositions. Part of the problem is that the relation of part to whole is ontologically intimate in a way reminiscent of identity. Such intimacy bespeaks a formal or internal relation, which typically requires no truth-makers beyond its terms. But truth-makers are held to necessitate their truths, so whence the contingency when A is part of B but need not be, or B need not have A as part? This paper addresses and attempts to disentangle the conundrum.

_ Source: _Volume 94, Issue 3, pp 381 - 390 Reference can fail in a way that intentionality cannot. Though the stream of phenomenal experience typically does not fail to target objects outside, it may do. How does the mind go about targeting objects beyond itself? The speculative conjecture of this paper is that it does so by a type of process which can be called _pointing_, and that the acts or act-aspects of pointing can be called _pointers_. The notion of a pointer has several suggestive roots. One is the familiar physical gesture of pointing. Another is the existence of directional signs such as on roads. The third is the software data types making direct reference to memory locations in computers, also called ‘pointers’. A final source is demonstrative pronouns and other deictic expressions in language, of which Peter Geach wrote, “a demonstrative pronoun … works like a pointer, not like a label”. I suggest that there is in the mental cognitive repertoire a structurally and semantically analogous type of act which pierces the passivity of perception, directs us outside the machine, and prepares the way for drawing others’ minds to the same thing.

Alexius Meinong is one of the foremost, most independent-minded, most distinctive, most misunderstood and most unjustly maligned of all philosophers. He was pilloried by his own teacher Brentano and his one-time admirer Bertrand Russell as what Gilbert Ryle called “perhaps the supreme entity-multiplier in the history of philosophy.” It is often enough to employ the adjective ‘Meinongian’ to cast a philosopher’s views into the outer darkness. But as supreme commentator J. N. Findlay observes, Meinong was a painstakingly careful and methodical thinker, who inched his way forward to his radical ontological views. Meinong maintained a running interest in ethics and value theory, and the subjective experiences of feeling and desire that correlate to these spheres, from his 1894 Psychological-ethical investigations in value theory to his late works Emotional presentation and the posthumous On the foundation of general value theory. In the process he graduated from value subjectivism to value objectivism. In this paper we will survey Meinong’s mature theory of intentionality and its objects, with particular attention to the otherwise neglected dignitatives and desideratives.

Where there is mind there is representational opacity, and vice versa. Opacity arises because where there is representation there may be misrepresentation, and the status of the misrepresenting sign or state of the misrepresenting sign‐user can only be characterized via the terms used for a correctly represented object. Opacity is not a blight for naturalism, but must be recognized and exploited if naturalism is to adequately embrace the mental. Opacity is illustrated for language, for the mental itself, for depiction and other non‐linguistic representation. Alethic modality, a candidate counterexample to the thesis (opacity without mind is defused consequences for our conception of non‐human intelligence are outlined.