He also introduced the ideas of the Poisson-Lie group and Poisson-Lie actions in his work on Yang-Baxter equations, work also related to the quantum groups.
Later in the century, Immanuel Kant's Critik der Urteilskraft (1790; "Critique of Judgment") introduced the ideas of a disinterested judgment of taste, the purposiveness of artistic form, and the difference between the beautiful and sublime.
Among the members of this group, Rudolf Carnap (1891 1970) and Moritz Schlick (1882 1936) have perhaps had the most influence on Anglo-American philosophy, though it was an English philosopher, A.J. Ayer (1910 89), who introduced the ideas of logical positivism to English philosophy in his widely read work Language, Truth and Logic (1936).
Suddenly Eeyore becomes Christopher Robin Selff begins speaking twice as fast and three times as intelligently, and there is a nice digression on the mathematician and physicist Émilie du Châletet, Voltaire's collaborator and lover, who introduced the ideas of Isaac Newton to a somewhat reluctant France with her translation of his Principia.
Over the next few years, he introduced the ideas of both German thinkers to France -- first in a doctoral dissertation, published in 1930, on the theory of intuition in Husserl's phenomenology, then in a French translation of Husserl's "Cartesian Meditations" and finally in a 1932 essay on Heidegger.
The two introduced the ideas of public-key cryptography and digital signatures, which laid the basis for most security protocols used on the Internet today.
