Re: Distinct linear orderings on Z

From: robert j. kolker (nowhere_at_nowhere.net)
Date: 03/23/05 

Date: Wed, 23 Mar 2005 16:48:58 -0500

stephen@nomail.com wrote:

> They various definitions proposed for "circle" have
> been very weak and supposed all sorts of other definitions
> such as "motion", "line", "rate" and required myriad
> assumptions about how those words are defined.

The concept of sets is buried in each of the above. Or at least any of
the above notions can be expressed in terms of sets.

Bob Kolker