http://semantical.blogspot.com.br/2008/05/notes-on-kants-vocabulary.html http://www.proprofs.com/flashcards/tableview.php?title=kantian-vocabulary http://en.wikipedia.org/wiki/Meta-ontology http://plato.stanford.edu/entries/logic-ontology/#CarRejOntL1MeeO4EndO2 http://www.siue.edu/~wlarkin/teaching/PHIL309/carnap.html http://pragmatichistoryofmind.blogspot.com.br/2012/06/reflections-on-carnaps-empiricism.html