What pre-exists our disciplines? What are our a priori? These questions, which come from the philosophy of science, have been highly theorized. The « Antecedent » project aims to place the law at the heart of these fundamental questions in a totally original way, so as to create a dialogue, within our scientific community and beyond, on the different prejudices, presuppositions, paradigms, beliefs (etc.) that forge our theoretical and practical constructs and allow us to illuminate and discuss their meaning.