<!DOCTYPE html><HTML lang="en"> <head><meta charset="utf-8"> <title>Bertolet (Rod) - Ackerman on Propositional Identity (Theo Todman's Book Collection - Paper Abstracts) </title> <link href="../../TheosStyle.css" rel="stylesheet" type="text/css"><link rel="shortcut icon" href="../../TT_ICO.png" /></head> <BODY> <CENTER> <div id="header"><HR><h1>Theo Todman's Web Page - Paper Abstracts</h1><HR></div><A name="Top"></A> <TABLE class = "Bridge" WIDTH=950> <tr><th><A HREF = "../../PaperSummaries/PaperSummary_09/PaperSummary_9283.htm">Ackerman on Propositional Identity</A></th></tr> <tr><th><A HREF = "../../Authors/B/Author_Bertolet (Rod).htm">Bertolet (Rod)</a></th></tr> <tr><th>Source: Philosophical Quarterly, Vol. 34, No. 137, Oct., 1984, pp. 499-504</th></tr> <tr><th>Paper - Abstract</th></tr> </TABLE> </CENTER> <P><CENTER><TABLE class = "Bridge" WIDTH=200><tr><td><A HREF = "../../PaperSummaries/PaperSummary_09/PaperSummary_9283.htm">Paper Summary</A></td></tr></TABLE></CENTER></P> <hr><P><FONT COLOR = "0000FF"><U>Philosophers Index Abstract</U><FONT COLOR = "800080"><ol type="1">Diana Ackerman is perhaps the most recent philosopher to deploy one of the principles often entitled "<a name="1"></a><A HREF="../../Notes/Notes_0/Notes_81.htm">Leibniz's law</A><SUP>1</SUP>" to argue that at least some propositions containing different but co-referential singular terms must be distinct. I attempt to show that her argument (and by implication its predecessors) fails because the attempt to appeal to the allegedly Leibnizian principle is illegitimate: either the principle is unacceptable, or else its use in the argument is question-begging.</ol></FONT><FONT COLOR = "0000FF"><HR></P><a name="ColourConventions"></a><p><b>Text Colour Conventions (see <A HREF="../../Notes/Notes_10/Notes_1025.htm">disclaimer</a>)</b></p><OL TYPE="1"><LI><FONT COLOR = "0000FF">Blue</FONT>: Text by me; &copy; Theo Todman, 2018</li><LI><FONT COLOR = "800080">Mauve</FONT>: Text by correspondent(s) or other author(s); &copy; the author(s)</li></OL> <BR><HR><BR><CENTER> <TABLE class = "Bridge" WIDTH=950> <TR><TD WIDTH="30%">&copy; Theo Todman, June 2007 - August 2018.</TD> <TD WIDTH="40%">Please address any comments on this page to <A HREF="mailto:theo@theotodman.com">theo@theotodman.com</A>.</TD> <TD WIDTH="30%">File output: <time datetime="2018-08-02T07:19" pubdate>02/08/2018 07:19:14</time> <br><A HREF="../../Notes/Notes_10/Notes_1010.htm">Website Maintenance Dashboard</A></TD></TR> <TD WIDTH="30%"><A HREF="#Top">Return to Top of this Page</A></TD> <TD WIDTH="40%"><A HREF="../../Notes/Notes_11/Notes_1140.htm">Return to Theo Todman's Philosophy Page</A></TD> <TD WIDTH="30%"><A HREF="../../index.htm">Return to Theo Todman's Home Page</A></TD> </TR></TABLE></CENTER><HR> </BODY> </HTML>