Verite de fait (Verite de raison)
Verite de fait (Verite de raison)
There are two kinds of truth, according to Leibniz, truths of fact and truths of reason (or reasoning).These two classes of truths are exhaustive, and also, with the single exception of the existence of God, which has a logically anomalous position of being a necessary truth about existence, completely exclusive. Truths of reason are completely certain and necessary, for their denial involves a contradiction and is hence impossible. Truths of fact, on the other hand, are not completely certain and necessary. Their denial involves no contradiction, they rest upon experience and they have, hence, only a limited inductive certainty. The truth of inductive inferences which go beyond the evidence of immediate experience depends upon the Law of Sufficient Reason, which is the expression in logic of the choice of the best on the part of God. Since God conceivably could have chosen another world for realization, rathcr than this best of all possible worlds, these truths can never equal in certainty the truths of reason, which depend not on God’s will, but on the Principle of Contradiction, which not even God himself can make to be false. — F.L.W.