Definition abgr_Kernel_subabgr {A B : abgr} (f : monoidfun A B) : @subabgr A := subgrconstr (@abgr_kernel_hsubtype A B f) (abgr_Kernel_subabgr_issubgr f).
Require Import UniMath.MoreFoundations.Orders. Require Import UniMath.MoreFoundations.Subtypes.