Template talk:Mset

Singleton and null sets
I'm having trouble marking up null and singleton sets. I expect

to render as $$ = $x$ $x$ { x }, $\cup$ = {} , but instead it renders as

$y$

Adding a pipe resolves the issue for the null set, but still leaves the problem with the singleton set. -- Shmuel (Seymour J.) Metz Username:Chatul (talk) 14:20, 5 June 2024 (UTC)