Version préliminaire de avril 2007 avec un avertissement de mars 2008In its December 2006 issue, the Journal of Quantitative Linguistics published a paper by Jean-Marie Viprey & Claude-Nicolas Ledoux ("About Labbé's 'Inter-textual Distance'") who rejects our attribution to P. Corneille of the authorship of all the verse plays by Molière and two of his prose plays (Dom Juan and l'Avare).This paper presents some so-called experiments which do not concern the Corneille-Molière case. Calculus are false. For example, ponctuations are counted as “words”. The examples have been chosen far outside the validity limits given to the distance scale. Graphs are false or mistaken.However, this confrontation leads to a reinforcement of the Intertextual Di...