fact: Record mixin_of (T : Type) (base : TPCM.class_of T) (U := TPCM.Pack base) := Mixin { subtpcm_struct_op : subtpcm_st U V D}.
imports: Coq(ssreflect ssrbool ssrfun) mathcomp(eqtype fintype) pcm(options axioms prelude) pcm(pcm)