The matching of thought to things, a comparison between the two terms of thought on the one hand and the thing, on the other hand, there are two types of truth:
Logical truth (the congruence of thought with the thing, so if the narration of an accident matches reality, then the narration is true
Existential truth: the conformity of the thing with the imaginary thought that judges it, that is, the conformity of the thing with the mind.