English
Inserting i into s under a suitable condition yields (insert i s).PairwiseDisjoint f.
Русский
При определенном условии добавление i в s дает (insert i s).PairwiseDisjoint f.
LaTeX
$$Set.PairwiseDisjoint.insert (hs : s.PairwiseDisjoint f) {i : ι} (h : ∀ j ∈ s, i ≠ j → Disjoint (f i) (f j)) : (insert i s).PairwiseDisjoint f$$
Lean4
protected theorem insert (hs : s.PairwiseDisjoint f) {i : ι} (h : ∀ j ∈ s, i ≠ j → Disjoint (f i) (f j)) :
(insert i s).PairwiseDisjoint f :=
pairwiseDisjoint_insert.2 ⟨hs, h⟩