Studies of Dante's numerology have focused on the obvious significance of such single numbers as 3, 9, and 10, or have proposed schemes of bewildering complexity. However, a neglected aspect of Dante's obsession with numbers is his juxtapositions of 3 and 1, as well as with factorizations of 3 plus 1. Patterns of “tre e uno” that fully embody the Christian concept of the Godhead are found in the Commedia's words, lines of verse, cantos, canticles, and overall structure.
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