Cf. Kalderon, "Perception and Extramission in De quantitate animae" who stresses that this condition in particular must be fulfilled for a theory to be called "extramissionist".
in Austria. In teaching, he covers ancient, medieval and modern philosophy. In research, he specializes in late medieval philosophy, including manuscript traditions as well as the history of scholars and institutions, paleography and codicology. He has some seventy publications to his name, including an article on Albert of Saxony in the Verfasserlexikon, 2nd ed.,
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