0 votes 0 votes The set $$\{(x,y)\in \mathbb{N}\times\mathbb{N}| x^y \text{ divides } y^x,\:x\neq y,\:xy\neq0,\:x\neq1\}$$ is finite. Others tifrmaths2021 + – soujanyareddy13 asked Sep 27, 2021 • edited Oct 23, 2021 by go_editor soujanyareddy13 97 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.