fact: Definition nat_full@{} := ltac:(first[exact nat_full'@{Ularge Ularge}| exact nat_full'@{Ularge Ularge N}| exact nat_full'@{}]).
imports: HoTT.Classes.interfaces.abstract_algebra HoTT.Classes.interfaces.naturals HoTT.Classes.interfaces.orders HoTT.Classes.theory.rings HoTT.Classes.orders.semirings HoTT.Classes.theory.apartness