%0 Journal Article %A Shani, Assaf %T A counterexample regarding an equivalence relation on a product space %J Canadian mathematical bulletin %D 2025 %P 1262-1266 %V 68 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/S0008439525000463/ %R 10.4153/S0008439525000463 %F 10_4153_S0008439525000463