A priori
9 min read

Photo: Ino Sigaze. I want to point out that a priori is not a validity requirement for judgments, but a reality requirement for statements. It is [...] a matter of [...] uncovering the conditions under which propositions arose, the laws of their coexistence with others, the specific forms of their modes of existence and the principles by which they persist, change and disappear. An a priori is not a truth that can never be said or actually assigned to experience; but a given history, because those are the things that were actually said.” —Michel Foucault.

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A posteriori
7 min read

Photo: Pixabay. In the context of modern epistemology, for example the principles of scientific epistemology, the dualism of a priori and a posteriori knowledge is resolved by the fact that observations must confirm the hypothesis (more precisely: must not be falsified), or more general insights are hierarchically supported by more specific, more immediate insights ( evolutionary falsifiability).

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