Prolegomena to pure logic

Husserl, Edmund. Prolegomena to pure logic: (volume one of the German edition) ; Expression and meaning : (Investigation I, volume 2 of the German edition) ; The ideal unity of the species : (Investigation I, volume 2 of the German edition) / . - New York : Humanities Press, 1970 . - xvii, 432 p. 23 cm. - (International library of philosophy and scientific method )
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