Garti, Shimon, Menachem Magidor, and Saharon Shelah. “Infinite Monochromatic Paths and a Theorem of Erdős-Hajnal-Rado”. The Electronic Journal of Combinatorics 27, no. 2 (April 17, 2020): #P2.8. Accessed May 28, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v27i2p8.