On Sat, May 23, 2009 at 9:25 PM, William Stein<[email protected]> wrote:

> For me rings always have both 1 and 0.
> I would call a "ring without 1" an algebra.

It is common terminology to call a `Ring without 1' a Rng.
I'm usually not a fan of Wikipedia as reference, but here you go

 http://en.wikipedia.org/wiki/Rng_(algebra)

-- Gaby

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