http://www.ruleml.org/dtd/0.8/ruleml-datalog.dtd Website
" activate their content; -->" are thus no-ops -->_head _body" stands for "_head is implied by _body", i.e., "_head is true is implied by _body is true", or equivalently, -->_body _head" stands for "_
added by keller91711 on 2007-11-27 18:56:55