Hello Silvio, thanks!
http://purl.org/healthcarevocab/v1 and https://github.com/Bonubase/dicom2rdf now use co:List. Regards, Michael Brunnbauer On Fri, Jun 28, 2013 at 01:35:33PM +0200, Silvio Peroni wrote: > Dear Michael, > > > am I missing something or is there no way to close an empty list with the > > Collections Ontology ? That would be bad. > > It is of course possible to make empty list using CO, since neither > co:firstItem nor co:lastItem are mandatory for the class co:List ? i.e. > co:List is restricted to be a subclass of > co:lastItem max 1 and co:firstItem max 1 > > Thus, you can define empty list as follows: > > :my-list a co:List ; > co:size "0"xsd:nonNegativeInteger . > > I hope it might help. > > Have a nice day :-) > > S. > > > > > ---------------------------------------------------------------------------- > Silvio Peroni, Ph.D. > Department of Computer Science and Engineering > University of Bologna, Bologna (Italy) > Tel: +39 051 2094871 > E-mail: [email protected] > Web: http://www.essepuntato.it > Blog: http://palindrom.es/phd > Twitter: essepuntato > -- ++ Michael Brunnbauer ++ netEstate GmbH ++ Geisenhausener Straße 11a ++ 81379 München ++ Tel +49 89 32 19 77 80 ++ Fax +49 89 32 19 77 89 ++ E-Mail [email protected] ++ http://www.netestate.de/ ++ ++ Sitz: München, HRB Nr.142452 (Handelsregister B München) ++ USt-IdNr. DE221033342 ++ Geschäftsführer: Michael Brunnbauer, Franz Brunnbauer ++ Prokurist: Dipl. Kfm. (Univ.) Markus Hendel
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