fact: Definition equiv_has_tr0_choice_has_quotient_choice `{Funext} (A : Type) : HasTrChoice 0 A <~> HasQuotientChoice A := Build_Equiv _ _ (has_quotient_choice_tr0choice A) _.
imports: HoTT.Basics HoTT.Types HoTT.HSet HoTT.Truncations.Core HoTT.Colimits.Quotient HoTT.Projective