On Tue, Feb 6, 2018 at 12:04 PM, Waldek Hebisch
<[email protected]> wrote:
> ...
> I would write:
>
> a * rightRecip(a) = 1
>

Noted.

>
> I should have written leftRecip and rightRecip _as functions_
> are different.  In particular there are element where left
> inverse exists but right inverse does not exist (that is gives
> "failed").

OK I see. Thanks.

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