From: Johann Hibschman <johann@...>
Date: 2001-07-31T03:32:08+09:00
Subject: [ruby-talk:18838] Re: Numbers classes.. Rational number? [was: Ruby as opposed to Python?]

Florian G Pflug writes:

> integers mod x are a field when x is a prime number, otherwise its a ring.

Right.  I worked this out right after I posted that.  Algebra is fun,
and it had been too long since I last looked at Herstein.  So does
this mean that, in fact, there is no good way to define division on
integers, without including the rationals?

I suspect we're giving the Pragmatic Programmers hives.

-- 
Johann Hibschman                           johann@physics.berkeley.edu