English
If U ∈ s then U ∈ generate s; the generating process contains all generating members.
Русский
Если U ∈ s, тогда U ∈ generate s; порождение содержит все порождающие множества.
LaTeX
$$$ U \in s \Rightarrow U \in \mathrm{generate}(s). $$$
Lean4
/-- `generate g` is the largest filter containing the sets `g`. -/
def generate (g : Set (Set α)) : Filter α
where
sets := {s | GenerateSets g s}
univ_sets := GenerateSets.univ
sets_of_superset := GenerateSets.superset
inter_sets := GenerateSets.inter