ABSTRACT
Scientific and mathematical knowledge is considered well-grounded knowledge. It complies with the structures of both discursive logic and calculability, but also with the structures linking reason and consequence as well as the laws of induction and causality. It is based on determining facts and making declarative statements, whose general form, the predicate, represents the identification of “A is P.” The “truth” of these statements is in turn derived from a series of additional sentences, with the same form, even when there is no last sentence which closes the chain by formulating a final reason. No knowledge is complete; it stumbles not only on the provisional nature of the paradigm, and on the sketchiness of the empiricism, but also because it remains embedded in an indefinite of ignorance, which can provide per definition neither a theory, nor meaning.
