Abstract

Leibniz presents himself, especially in his late correspondence with Remond, as a concordist: in other philosophical views, even distant and ancient ones, he sets out to discover «traces of truth» that are already present there. According to the concordist programme, Leibniz claims, philosophers are right in what they affi rm, and wrong in what they deny. This paradoxical asymmetry is given a logical explanation in the paper, in connection with the topic of «reduplication», i. e. the introduction of qualifi cations in otherwise simple categorical propositions. In order to be right in affi rming a complex disjunctive proposition, it is enough for one of the disjuncts to be true; but in order to be right in negating a complex disjunctive proposition, it is required for all of them to be false. Meanwhile, if one may «qualify» propositions by different reduplications of their terms, in principle one of those qualifi ed propositions is bound to be true. On such presuppositions concordism can be expected to be quite effective as a meta-philosophical perspective