Couturat writes of Whitehead's Universal Algebra, and refers to Leibniz, Grassmann, and Peano. He thanks Whitehead for his approval of Couturat's critique of Peano's Formulario.
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Whitehead's Lost Papers
Document Item Type Metadata
Couturat, Louis, "Letter from Louis Couturat to Whitehead," LET1243, Whitehead Research Library, accessed December 5, 2021, http://wrl.whiteheadresearch.org/items/show/2469.