E1-5 cleanup up the interaction between empty and mixed and so on for, among other things, derivation by extension. There is one case we still arguably don't allow that we should -- you can't extent empty to mixed. It doesn't violate the prefix invariant, so seems to be it should be allowed. Suggested candidate requirement for 1.1. ht -- Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh Half-time member of W3C Team 2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440 Fax: (44) 131 650-4587, e-mail: ht@cogsci.ed.ac.uk URL: http://www.ltg.ed.ac.uk/~ht/ [mail really from me _always_ has this .sig -- mail without it is forged spam]Received on Thursday, 4 December 2003 07:49:38 GMT
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