English
For a set s in a complete lattice, sSupIndep s is equivalent to iSupIndep of the inclusion map from s into α.
Русский
Для множества s в полной решётке sSupIndep эквивалентно iSupIndep включения из s в α.
LaTeX
$$sSupIndep s ↔ iSupIndep ((↑) : s → α)$$
Lean4
theorem sSupIndep_iff {α : Type*} [CompleteLattice α] (s : Set α) : sSupIndep s ↔ iSupIndep ((↑) : s → α) :=
by
simp_rw [iSupIndep, sSupIndep, SetCoe.forall, sSup_eq_iSup]
refine forall₂_congr fun a ha => ?_
simp [iSup_subtype, iSup_and]