The Resemblance Structure of Natural Kinds: A Formal Model for Resemblance Nominalism

278 p.The aim of this thesis is to better understand the ways natural kinds are related to each other by species-genus relations and the ways in which the members of the kind are related to each other by resemblance relations, by making use of formal models of kinds. This is done by first analysing a Minimal Conception of Natural Kinds and then reconstructing it from the ontological assumptions of Resemblance Nominalism. The questions addressed are:(1) What is the external structure of kinds' In what ways are kinds related to each other by species-genus relations'(2) What is the internal structure of kinds' In what sense are the instances of a kind similar enough to each other'According to the Minimal Conception of Kinds, kinds have two components, a set of members of the kind (the extension) and a set of natural attributes common to these objects (the intension). Several interesting features of this conception are discussed by making use of the mathematical theory of concept lattices. First, such structures provide a model for contemporary formulations of syllogistic logic. Second, kinds are ordered forming a complete lattice that follows Kant's law of the duality between extension and intension, according to which the extension of a kind is inversely related to its intension. Finally, kinds are shown to have Aristotelian definitions in terms of genera and specific differences. Overall this results in a description of the specificity relations of kinds as an algebraic calculus.According to Resemblance Nominalism, attributes or properties are classes of similar objects. Such an approach faces Goodman's companionship and imperfect community problems. In order to deal with these, a specific nominalism, namely Aristocratic Resemblance Nominalism, is chosen. According to it, attributes are classes of objects resembling a given paradigm. A model for it is introduced by making use of the mathematical theory of similarity structures and of some results on the topic of quasianalysis. Two other models (the polar model and an order-theoretic model) are considered and shown to be equivalent to the previous one.The main result is that the class of lattices of kinds that a nominalist can recover uniquely by starting from these assumptions is that of complete coatomistic lattices. Several other related results are obtained, including a generalization of the similarity model that allows for paradigms with several properties and properties with several paradigms. The conclusion is that, under nominalist assumptions, the internal structure of kinds is fixed by paradigmatic objects and the external structure of kinds is that of a coatomistic lattice that satisfies the Minimal Conception of Kinds

Philosophical logics - a survey and a bibliography

Intensional logics attract the attention of researchers from differing academic backgrounds and various scientific interests. My aim is to sketch the philosophical background of alethic, doxastic, and deontic logics, their formal and metaphysical presumptions and their various problems and paradoxes, without attempting formal rigor. A bibliography, concise on philosophical writings, is meant to allow the reader\u27s access to the maze of literature in the field

The Resemblance Structure of Natural Kinds: A Formal Model for Resemblance Nominalism

278 p.The aim of this thesis is to better understand the ways natural kinds are related to each other by species-genus relations and the ways in which the members of the kind are related to each other by resemblance relations, by making use of formal models of kinds. This is done by first analysing a Minimal Conception of Natural Kinds and then reconstructing it from the ontological assumptions of Resemblance Nominalism. The questions addressed are:(1) What is the external structure of kinds' In what ways are kinds related to each other by species-genus relations'(2) What is the internal structure of kinds' In what sense are the instances of a kind similar enough to each other'According to the Minimal Conception of Kinds, kinds have two components, a set of members of the kind (the extension) and a set of natural attributes common to these objects (the intension). Several interesting features of this conception are discussed by making use of the mathematical theory of concept lattices. First, such structures provide a model for contemporary formulations of syllogistic logic. Second, kinds are ordered forming a complete lattice that follows Kant's law of the duality between extension and intension, according to which the extension of a kind is inversely related to its intension. Finally, kinds are shown to have Aristotelian definitions in terms of genera and specific differences. Overall this results in a description of the specificity relations of kinds as an algebraic calculus.According to Resemblance Nominalism, attributes or properties are classes of similar objects. Such an approach faces Goodman's companionship and imperfect community problems. In order to deal with these, a specific nominalism, namely Aristocratic Resemblance Nominalism, is chosen. According to it, attributes are classes of objects resembling a given paradigm. A model for it is introduced by making use of the mathematical theory of similarity structures and of some results on the topic of quasianalysis. Two other models (the polar model and an order-theoretic model) are considered and shown to be equivalent to the previous one.The main result is that the class of lattices of kinds that a nominalist can recover uniquely by starting from these assumptions is that of complete coatomistic lattices. Several other related results are obtained, including a generalization of the similarity model that allows for paradigms with several properties and properties with several paradigms. The conclusion is that, under nominalist assumptions, the internal structure of kinds is fixed by paradigmatic objects and the external structure of kinds is that of a coatomistic lattice that satisfies the Minimal Conception of Kinds

Concepts as Correlates of Lexical Labels. A Cognitivist Perspective, 274 s.

This is a submitted manuscript version. The publisher should be contacted for permission to re-use or reprint the material in any form. Final published version, copyright Peter Lang: https://doi.org/10.3726/978-3-653-05287-9The study of language becomes particularly attractive when it is not practised as an isolated descriptive enterprise, but when it has wide-ranging implications for the study of the human mind. Such is the spirit of this book. While categorisation may be the single most basic cognitive process in organisms, and as an area of inquiry, it is fundamental to Cognitive Science as a whole, at the other end of the spectrum, high-level cognition is organised and permeated by language, giving rise to categories that count and function as concepts. Working from considering the philosophical assumptions of the cognitivist perspective, this study offers an argument for a very productive understanding of the relation between concepts, categories, and their theoretical models

Strange Concepts and the Stories They Make Possible

Fantastic tales of rebellious robots and animated artifacts are a permanent fixture in popular culture. What kind of behavior do we expect from such conceptual hybrids in science fiction, nonsense poetry, and surrealist art

The Measure of a Man: A Critical Methodology for Investigating Essentialist Beliefs about Sexual Orientation Categories in Japan and the United States

Methods for studying laypeople’s beliefs about sexual orientation categories have evolved in step with larger theoretical and epistemological shifts in the interdisciplinary study of sexuality. The dominant approach to measuring laypeople’s sexual orientation beliefs over the past decade was made possible through an epistemological shift from a nature vs. nurture paradigm to a social constructionist theoretical model of psychological essentialism (Medin, 1989; Medin & Ortony, 1989; Rothbart & Taylor, 1992). Despite this shift, I argue that the forced-response scale-based survey methodologies typically used to operationally define essentialist beliefs about sexual orientation at best only partially realize the social constructionist potential of this underlying theory. By critically reconstructing this theory of psychological essentialism from an epistemological stance rooted in discourse, I developed a methodology reliant not on investigators’ but rather laypeople’s own mobilization of culturally shared discourses of sexuality. In testing this methodology, I focus on one theoretical dimension of psychological essentialism—inductive potential, or the extent to which shared knowledge about category membership allows for inference of a wealth of associated information about specific category members. I explored this critical methodology through a mixed-method empirical investigation of laypeople’s beliefs in the inductive potential of sexual orientation categories in relation to two components of sexuality: sexual desire and romantic love. I sought to answer two research questions: To what extent, and in what ways, do laypeople discursively mobilize inductive potential beliefs about homosexual or heterosexual men’s sexual desire and romantic love? To what extent, and in what ways, is laypeople’s discursive mobilization of those inductive potential beliefs explained by their gendered and/or cultural contexts? In Study 1, I primed cultural discourses of sexual orientation categories prior to an impression formation task. Students from four-year public universities in the Tokyo (N = 197; ages 18-23) and New York City (N = 208; ages 18-25) metropolitan areas read a series of fictional diary entries featuring a male college student (the target) describing his attraction to either a female or male classmate. Each participant then manually drew a Euler diagram comprised of circles representing their impressions of the relative importance (circle size) and interrelationships between (circle overlap) six identities associated with the target. To the extent participants engaged in inductive potential beliefs, I predicted that: (H1) participants would perceive sexual desire as more centrally defining of a same-sex attracted male target relative to an other-sex attracted male target; and (H2) participants would perceive romantic love as less centrally defining of a same-sex attracted male target relative to an other-sex attracted male target. Fitting multiple circle size and overlap outcomes to separate generalized linear models, I found a consistent pattern of support for both predictions. Cultural and gendered differences added additional nuance to these experimental patterns: Japanese participants associated men with greater sexual desire and less romantic love relative to their US peers, regardless of perceived sexual orientation. Additionally, US and Japanese men, compared to women, appeared to associate these two components of sexuality more frequently with men’s social roles. As such, while these results strongly suggested the presence of participants’ inductive potential beliefs about sexual orientation categories, they also pointed to important variation across culture and gender. In an effort to discursively unpack the inductively rich meanings associated with these additional gendered and cultural patterns, as well as establish the cultural credibility of my interpretations of the results of this experimental manipulation, in a second study I engaged separate peer focus groups in New York City (N = 20; ages 19-25) and Tokyo (N = 21; ages 20- 24) in discursively interpreting the Euler diagrams produced in Study 1. Using thematic analysis, I identified three themes concerning the ways several distinct sexual orientation discourses were culturally understood in the US and Japan; the ways those discourses were imbricated with other distinct discourses of cultural identity; and the ways laypeople voiced resistance to these sexual orientation discourses. I concluded that the experimental pattern from Study 1 could be explained in part through US participants’ rejection of an essentialist discourse of binary sexual orientation in favor of a focus on sexual practices; Japanese participants’ responses marked instead a troubling of essentialist discourses of binary gender. Taken together, these findings from Study 1 and 2 implicate sexual orientation as an inductively potent discourse in laypeople’s construction of beliefs about male sexuality across cultural contexts and genders, albeit in cultural distinct ways. These results thus add to past research on essentialist beliefs while also highlighting a need for critical methodologies sensitive to the ways culturally embedded and multiply imbricated transnational discourses of sexuality inform beliefs about men