Talk:PlanetPhysics/Universe of Discourse

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%%% This file is part of PlanetPhysics snapshot of 2011-09-01 %%% Primary Title: universe of discourse %%% Primary Category Code: 00. %%% Filename: UniverseOfDiscourse.tex %%% Version: 1 %%% Owner: Jon Awbrey %%% Author(s): Jon Awbrey %%% PlanetPhysics is released under the GNU Free Documentation License. %%% You should have received a file called fdl.txt along with this file. %%% If not, please write to gnu@gnu.org. \documentclass[12pt]{article} \pagestyle{empty} \setlength{\paperwidth}{8.5in} \setlength{\paperheight}{11in}

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Boole (1854) defines \textbf{universe of discourse} in the following manner:

\begin{quote} In every discourse, whether of the mind conversing with its own thoughts, or of the individual in his intercourse with others, there is an assumed or expressed limit within which the subjects of its \htmladdnormallink{operation}{http://planetphysics.us/encyclopedia/Cod.html} are confined. $\ldots$ Now, whatever may be the extent of the field within which all the objects of our discourse are found, that field may properly be termed the universe of discourse. (Boole 1854/1958, p. 42). \end{quote}

\section{References}

\begin{itemize}

\item Boole, George (1854/1958), \textit{An Investigation of the Laws of Thought on Which are Founded the Mathematical Theories of Logic and Probabilities}, Macmillan Publishers, 1854. Reprinted with corrections, Dover Publications, New York, NY, 1958.

\end{itemize}

\section{External links}

\begin{itemize}

\item \htmladdnormallink{Commens Dictionary of Peirce's Terms}{http://www.helsinki.fi/science/commens/dictionary.html}:

\begin{quote} \htmladdnormallink{Logical Universe}{http://www.helsinki.fi/science/commens/terms/logicaluniv.html}.

\htmladdnormallink{Universe of Discourse}{http://www.helsinki.fi/science/commens/terms/universedisc.html}.

Peirce attributes the term ``universe of discourse" to De Morgan (1846).

\end{quote} \end{itemize}

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