Carving the world at its boundaries : a metaphysical study

According to common-sense beliefs, there is a mind-independent world consisting of many midsized physical objects which can survive qualitative changes and have all their parts at every time they exist. This thesis is a metaphysical study of the boundaries of such things. The metaphysical feature of...

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Main Author: Nunez, Gonzalo
Other Authors: Olson, Eric ; Rosanna, Keefe
Published: University of Sheffield 2017
Subjects:
100
Online Access:https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.731528
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spelling ndltd-bl.uk-oai-ethos.bl.uk-7315282019-03-05T15:39:31ZCarving the world at its boundaries : a metaphysical studyNunez, GonzaloOlson, Eric ; Rosanna, Keefe2017According to common-sense beliefs, there is a mind-independent world consisting of many midsized physical objects which can survive qualitative changes and have all their parts at every time they exist. This thesis is a metaphysical study of the boundaries of such things. The metaphysical feature of boundaries is that they are ontologically dependent entities. Following the work carried out by Franz Brentano and Roderick Chisholm, the existence of a boundary depends upon the existence of something else. However, regarding boundaries of physical objects (surfaces), they hold a mutual ontological dependence but asymmetrical: surfaces rigidly depend upon physical objects, whereas physical objects generically depend upon surfaces. Although a surface is a two-dimensional boundary (without thickness) which cannot take up physical space, it can be found in space where the physical object it belongs to is found; physical objects cannot take physical space unless they have a surface at every time they exist. Once the ontological nature of boundaries is explained, the thesis discusses some boundary-puzzles such as the belongingness of a boundary, vagueness/sharpness, and the bona fide/fiat distinction. It is thus discussed the problem of contact between physical objects, material co-location of objects and their boundaries, temporal persistence, and composition. The last two chapters focus on composition and vagueness. Universalism and nihilism are explained in terms of the boundary they set to determine when composition occurs and when it does not. According to nihilism, there are neither ordinary physical objects nor their surfaces, but only simples. I suggest that if there is any boundary in a nihilist ontology, it must be a sharp one. However, I defend the idea that if we carve in the world enough, we will find some vagueness at its boundaries.100University of Sheffieldhttps://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.731528http://etheses.whiterose.ac.uk/19023/Electronic Thesis or Dissertation
collection NDLTD
sources NDLTD
topic 100
spellingShingle 100
Nunez, Gonzalo
Carving the world at its boundaries : a metaphysical study
description According to common-sense beliefs, there is a mind-independent world consisting of many midsized physical objects which can survive qualitative changes and have all their parts at every time they exist. This thesis is a metaphysical study of the boundaries of such things. The metaphysical feature of boundaries is that they are ontologically dependent entities. Following the work carried out by Franz Brentano and Roderick Chisholm, the existence of a boundary depends upon the existence of something else. However, regarding boundaries of physical objects (surfaces), they hold a mutual ontological dependence but asymmetrical: surfaces rigidly depend upon physical objects, whereas physical objects generically depend upon surfaces. Although a surface is a two-dimensional boundary (without thickness) which cannot take up physical space, it can be found in space where the physical object it belongs to is found; physical objects cannot take physical space unless they have a surface at every time they exist. Once the ontological nature of boundaries is explained, the thesis discusses some boundary-puzzles such as the belongingness of a boundary, vagueness/sharpness, and the bona fide/fiat distinction. It is thus discussed the problem of contact between physical objects, material co-location of objects and their boundaries, temporal persistence, and composition. The last two chapters focus on composition and vagueness. Universalism and nihilism are explained in terms of the boundary they set to determine when composition occurs and when it does not. According to nihilism, there are neither ordinary physical objects nor their surfaces, but only simples. I suggest that if there is any boundary in a nihilist ontology, it must be a sharp one. However, I defend the idea that if we carve in the world enough, we will find some vagueness at its boundaries.
author2 Olson, Eric ; Rosanna, Keefe
author_facet Olson, Eric ; Rosanna, Keefe
Nunez, Gonzalo
author Nunez, Gonzalo
author_sort Nunez, Gonzalo
title Carving the world at its boundaries : a metaphysical study
title_short Carving the world at its boundaries : a metaphysical study
title_full Carving the world at its boundaries : a metaphysical study
title_fullStr Carving the world at its boundaries : a metaphysical study
title_full_unstemmed Carving the world at its boundaries : a metaphysical study
title_sort carving the world at its boundaries : a metaphysical study
publisher University of Sheffield
publishDate 2017
url https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.731528
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