Adelard of Bath (ădˈəlärd) [key], fl. 12th cent., English scholastic philosopher, celebrated for his study of Arabic learning. He translated Euclid from Arabic into Latin. His major works were Perdifficiles quaestiones naturales, which embodied his scientific studies, and De eodem et diverso, his principal philosophical work, which attempts a solution to the problems of nominalism and realism.
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