Elements is not uniform, one could wonder in what way should it be applied in Euclid's plane geometry. Besides legitimizing questions like this from the perspective of a philosophy of mathematical practice, we sketch a general perspective of conceptual analysis of mathematical texts, which involves an extended notion of mathematical theory as system of authorizations, and an audience-dependent notion of proof." /> Enthymemathical proofs and canonical proofs in Euclid's plane geometry - Lassalle-Casanave Abel; Panza Marco | sdvig press