[help-texinfo] How to make a redirect to an existing item

[Robert Dodier]

Hi,

I have some documentation and one of the items is @deffn adjoint. I'd
like to have another item, adjugate, of some type, which just says
something like 'adjugate: see adjoint.'

Is there a kind of @foo that I could use for adjugate that's
appropriate here? I guess I could make a @deffn adjugate and then have
the body of the description just say 'see @xref{adjoint}' or something
like that. But maybe this kind of redirection is already defined
somehow.

Thanks for your help, I appreciate it.

Robert Dodier