Letters ⇒ Package 'lettre': how to hide the 2nd 'Ref #'?

[erwann]

Package 'lettre' has two parameters for 'Ref #', that of the recipient, and that the sender:

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\begin{lettre}...\vref{xyz} \nref{abc}...\end{lettre}

I would like to keep the first field, but hide the second field, so I tried this:

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\begin{lettre}...\vref{xyz}...\end{lettre}

, which did not work (see attachment), and \nonref is not allowed. Any suggestion?

[erwann]

PS: it should be \Nref, not \nref, but it doesn't change the outcome.

[Stefan Kottwitz]

You can fix it by

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\let\nrefname\relax

after \begin{letter}.

Stefan