Relational algebra
Revision as of 09:14, 17 June 2006 by EndreyMark (talk | contribs) (Adding reference to pointfree (in shorly describing Oliveira's mentioned paper))
José Nuno Oliveira: First Steps in Pointfree Functional Dependency Theory. A concise and deep approach, it is pointfree. See also the author's homepage and also his many other papers -- many materials related to in this topic can be found.