Hindman’s theorem says that every finite coloring of the natural numbers has a monochromatic set of finite sums. A Ramsey algebra is a structure that satisfies an analogue of Hindman’s theorem. In this paper, we present the basic notions of Ramsey algebras by using terminology from mathematical logic. We also present some results regarding classification of Ramsey algebras.
"Ramsey Algebras and Formal Orderly Terms." Notre Dame J. Formal Logic 58 (1) 115 - 125, 2017. https://doi.org/10.1215/00294527-3800648