> From: And Rosta -850 <ucleaar@uk.ac.ucl>
> If
>   se  gives  x2 x1 x3
>   te  gives  x3 x2 x1
> then is it the case that
>   se te  gives  x2 x3 x1
>   te se  gives  x3 x1 x2
> and
>   te se te  and  se te se  both give  x1 x3 x2
> ?
satcydrati .i'e
(exactly so)
                        Colin