The reverse mathematics of Hindman's theorem for sums of exactly two elements
Citation:
Csima, B. F. , Dzhafarov, D. D. , Hirschfeldt, D. R. , Jockusch, Jr., C. G. , Solomon, R. , & Westrick, L. Brown. (2019). . Computability, 8, 253–263. doi:10.3233/com-180094
