The Evolution of Reason: Logic as a Branch of Biology

By William S. Cooper | Go to book overview

9
The Evolutionary Derivation
of Nonclassical Logics

There are respectable population models that are not logically classical. Such models give rise to evolutionarily stable logics, but the logics are nonstandard. The models are perfectly legitimate biologically, even though their logics involve departures from classical laws.

Three such models will be examined as case studies. Two of them (Models 5 and 6) have already appeared in the evolutionary literature in life-history tree form (Cooper 1981). One (Model 5) has also been analyzed in some detail in other papers (Cooper and Kaplan 1982; Kaplan and Cooper 1984), and has been reviewed in the context of related models (Godfrey-Smith 1996; Lomnicki 1988).


MODEL 5: A CHANGING ENVIRONMENT

Model 1 was a constant growth model. Each character-defined population of interest had a constant per-season rate of increase. Implicit in the constant growth supposition was the assumption that the environment does not change from season to season in ways that affect the growth rate. Such environments are said to be temporally homogeneous.

Dropping the temporal homogeneity restriction from Model 1 (but leaving everything else intact) produces a more general model, Model 5. In Model 5 the relevant environmental factors can change from season to season and the growth rate with them. Obviously the new model is capable of greater descriptive realism, for most real environments do fluctuate to at least some extent.

In Model 5 it will be assumed for simplicity that the environmental changes occur randomly through time. That is, knowing what the

-146-

Notes for this page

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

Items saved from this book

This book has been saved
Highlights (0)
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.”

Citations (0)
Some of your citations are legacy items.

Any citation created before July 30, 2012 will labeled as a “Cited page.” New citations will be saved as cited passages, pages or articles.

We also added the ability to view new citations from your projects or the book or article where you created them.

Notes (0)
Bookmarks (0)

You have no saved items from this book

Project items include:
  • Saved book/article
  • Highlights
  • Quotes/citations
  • Notes
  • Bookmarks
Notes
Cite this page

Cited page

Style
Citations are available only to our active members.
Sign up now to cite pages or passages in MLA, APA and Chicago citation styles.

(Einhorn, 1992, p. 25)

(Einhorn 25)

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 page

Bookmark this page
The Evolution of Reason: Logic as a Branch of Biology
Table of contents

Table of contents

Settings

Settings

Typeface
Text size Smaller Larger Reset View mode
Search within

Search within this book

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?

Full screen
/ 226

matching results for page

Cited passage

Style
Citations are available only to our active members.
Sign up now to cite pages or passages in MLA, 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."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.

For full access in an ad-free environment, sign up now for a FREE, 1-day trial.

Already a member? Log in now.