First, this article makes it explicit that the meaning of foundation of sciences proposed by Husserl should not be mistaken for some kind of epistemical foundationalism (section 1). Next, it sets forth the first model of foundation of knowledge held by Husserl, in Philosophy of arithmetic, and the main criticisms received (sections 2-3). At last, it follows the elaboration of a second model, presented in Prolegomena to pure logic (sections 4-7).
Husserl; Phenomenology; Foundationalism; Philosophical clarification; Ideality