Talk:Sigma-Algebra/Examples/Trivial Sigma-Algebra

where does this notation come from? Its flawed. I believe $\struct {X, \O}$ is correct. The first ordinate is the set, the second ordinate is the structure.
See Definition:Sigma-Algebra. A $\sigma$-algebra is a set of sets. So, $\struct {X, \O}$ is wrong.--Usagiop (talk) 14:20, 4 July 2022 (UTC)


 * Oh okay, apologies, I was getting the notation confused with that for a measurable set. D'oh. My bad. --prime mover (talk) 14:22, 4 July 2022 (UTC)