From: Daniel Carrera <dcarrera@...>
Date: 2002-12-01T06:23:35+09:00
Subject: Re: Ruby ++, the one element and generators

> You are referring to an algebraic 'group' (is it called like that in
> English?). A 'group' doesn't necessarily have a one element. But a
> N and Z_p do have a 'next' operation.

Yes, it's called a 'group' in English.  Actually, I figured he was talking
about 'rings' though.

> - existance of a neutral element: the parser randomly transforms x into
>  0+x or 1*x.

This is called "identity".