Ratio: Vol. 28, No. 1, March 2015

The Review of Metaphysics, March 2015 | Go to article overview

Ratio: Vol. 28, No. 1, March 2015


Does Conceivability Entail Metaphysical Possibility? MOTI MIZRAHI and DAVID R. MORROW

In this paper, it is argued that Weak Modal Rationalism, which is the view that ideal primary positive conceivability entails primary metaphysical possibility, is self-defeating. To this end, the paper outlines two reductio arguments against Weak Modal Rationalism. The first reductio shows that, from supposing that Weak Modal Rationalism is true, it follows that conceivability both is and is not conclusive evidence for possibility. The second reductio shows that, from supposing that Weak Modal Rationalism is true, it follows that it is possible that Weak Modal Rationalism is necessarily false, and hence that Weak Modal Rationalism is false. It is then argued that adopting a weaker position, according to which conceivability is merely prima facie evidence for possibility, provides limited protection from our criticism of conceivability arguments.

From Four- to Five-Dimensionalism, ANDREW GRAHAM

Philosophers have long noticed the similarity of identity over time and identity across worlds. Despite this similarity, analogous views on these matters are not always taken equally seriously. Four-dimensionalism is one of the most well-known accounts of identity over time. There is a clear modal analogue of four-dimensionalism, on which objects are modally extended and their transworld identity is a matter of having distinct modal parts located in different possible worlds. Yet this view, which we might call five-dimensionalism, is rarely discussed or defended, in comparison to its temporal counterpart. This paper argues that five-dimensionalism is at least as plausible as four-dimensionalism and deserves serious consideration as an account of transworld identity. The strategy is to show that arguments typically used in defense of four-dimensionalism can be adapted to defend five-dimensionalism as well. A powerful consideration in favor of four-dimensionalism is the fact that it provides an elegant and unified solution to a variety of puzzles concerning material coincidence. This paper shows that such puzzles come in equally troubling modal varieties and that five-dimensionalism provides an equally unified and elegant solution to them.

Vague Objects with Sharp Boundaries, JIRI BENOVSKY

This article considers two seemingly contradictory claims: first, the claim that everybody who thinks that there are ordinary objects has to accept that they are vague; and second, the claim that everybody has to accept the existence of sharp boundaries to ordinary objects. The purpose of this article is of course not to defend a contradiction. Indeed, there is no contradiction because the two claims do not concern the same "everybody." The first claim, that all ordinary objects are vague, is a claim that stems both from commonsense intuitions as well as from various types of ontologies of ordinary objects. This puts the pressure on theories of vagueness to account for the vague nature of ordinary objects--but, as will be shown, all theories of vagueness have to accept the existence of sharp thresholds. This is obvious in the case of epistemicism, and it is a well-known defect of supervaluationism; but, as will be shown, friends of metaphysical vagueness do have to endorse the existence of sharp thresholds in their theory as well. Consequently, there are reasons for dissatisfaction with these accounts, since they do not seem to be able to do the job they were asked to do.

Levels of Selection Are Artefacts of Different Fitness Temporal Measures, PIERRICK BOURRAT

This paper argues against the claim, recently put forward by some philosophers of biology and evolutionary biologists, that there can be two or more ontologically distinct levels of selection. By comparing the fitness of individuals with that of collectives of individuals in the same environment and over the same period of time--as required to decide if one or more levels of selection is acting in a population--the paper shows that the selection of collectives is a by-product of selection at the individual level. …

The rest of this article is only available to active members of Questia

Already a member? Log in now.

Notes for this article

Add a new note
If you are trying to select text to create highlights or citations, remember that you must now click or tap on the first word, and then click or tap on the last word.
One moment ...
Default project is now your active project.
Project items
Notes
Cite this article

Cited article

Style
Citations are available only to our active members.
Buy instant access to cite pages or passages in MLA 8, MLA 7, APA and Chicago citation styles.

(Einhorn, 1992, p. 25)

(Einhorn 25)

(Einhorn 25)

1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

Note: primary sources have slightly different requirements for citation. Please see these guidelines for more information.

Cited article

Ratio: Vol. 28, No. 1, March 2015
Settings

Settings

Typeface
Text size Smaller Larger Reset View mode
Search within

Search within this article

Look up

Look up a word

  • Dictionary
  • Thesaurus
Please submit a word or phrase above.
Print this page

Print this page

Why can't I print more than one page at a time?

Help
Full screen
Items saved from this article
  • Highlights & Notes
  • Citations
Some of your highlights are legacy items.

Highlights saved before July 30, 2012 will not be displayed on their respective source pages.

You can easily re-create the highlights by opening the book page or article, selecting the text, and clicking “Highlight.”

matching results for page

    Questia reader help

    How to highlight and cite specific passages

    1. Click or tap the first word you want to select.
    2. Click or tap the last word you want to select, and you’ll see everything in between get selected.
    3. You’ll then get a menu of options like creating a highlight or a citation from that passage of text.

    OK, got it!

    Cited passage

    Style
    Citations are available only to our active members.
    Buy instant access to cite pages or passages in MLA 8, MLA 7, APA and Chicago citation styles.

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn, 1992, p. 25).

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn 25)

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn 25)

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences."1

    1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

    Cited passage

    Thanks for trying Questia!

    Please continue trying out our research tools, but please note, full functionality is available only to our active members.

    Your work will be lost once you leave this Web page.

    Buy instant access to save your work.

    Already a member? Log in now.

    Search by... Author
    Show... All Results Primary Sources Peer-reviewed

    Oops!

    An unknown error has occurred. Please click the button below to reload the page. If the problem persists, please try again in a little while.