English
For Finset-based independence, the E-set is the ground of the resulting matroid on α.
Русский
Для независимости на Finset E задаёт опорное множество матроида на α.
LaTeX
$$$\\mathrm{ofFinset\\_E}\\; E\\; Indep\\; indep\\_empty\\; indep\\_subset\\; indep\\_aug\\; subset\\_ground:\\; E = E$$$
Lean4
@[simp]
theorem ofFinset_E [DecidableEq α] (E : Set α) Indep indep_empty indep_subset indep_aug subset_ground :
(IndepMatroid.ofFinset E Indep indep_empty indep_subset indep_aug subset_ground).E = E :=
rfl