On encyclopedia
encyclopedia, started in the 17th as to gather and systematize. Concrete / artificial system.
Semantics: describing things; (linguistics). - http://en.wikipedia.org/wiki/Analytic_philosophy // http://en.wikipedia.org/wiki/List_of_logic_symbols Mathematics: functions.
Language is a system that cannot be trusted (http://en.wikipedia.org/wiki/Fritz_Mauthner - language skepticism): "Should constantly be questioned".
Also in the 17th century fact and speculation methods were tight together.
eg.: of Universal Languages: Mathematics / Programing. http://en.wikipedia.org/wiki/Interlingua . http://en.wikipedia.org/wiki/Esperanto .
Semantic web ontology (tree like hierarchical structure) - one consistent framework; system of meta tagging (classification); http://en.wikipedia.org/wiki/Ontology object subject relation
There is no such a thing as technical precision?