If every concept ist not, in trivial terms, to have a content, then the content of a concept has to be understood as the set of all concepts that it contains , the concept itself and the tautological concept being excepted. Since a negated concept can only include, in terms of content, the negations of the special concepts, the negated individual concepts are consequently without content . The individual concept, whose content is the sufficient condition for establishing a possible individual (...) as extension, is indispensable if Leibniz's theses are to be upheld: equality of extent is also always equality of content. The intensional conceptual estimation can also be extensionally interpreted. Conceptual negations are however indispensable if a Spinozistic monism is to be avoided and a multitude of the most general elementary concepts obtained. (shrink)