[ View Follow Ups ] [ Post Followup ] [ Back to the Course Discussion List ] [ Help ]

Sets, Maps and Symmetry Groups Course Discussion List


Re: Discussion question

Posted by Matt Rozen on October 20, 1999 at 02:22:29:

In Reply to: Re: Discussion question posted by Daniel Goroff on October 19, 1999 at 20:34:27:

The copy of Z+ that the rationals contain are the equivalence classes {[x,1] such that x is an element of Z+} We could define another equivalence relation on the union of Z+ and Q that could technically relate each positive integer with a unique rational number. 7, for example, would be equivalent to [7,1]. We can't do this in Z_7 because there are only 7 equivalence classes in Z_7 but there are inifintely many numbers in Z+.

Follow Ups:


Post a Followup

Name    : 
E-Mail  : 
Subject : 
Comments:


[ View Follow Ups ] [ Post Followup ] [ Back to the Course Discussion List ] [ HELP ]


This discussion list is provided by The Instructional Computing Group (ICG) of FAS Computer Services

Copyright © The President and Fellows of Harvard College