proposition: Lemma lim1g U : (\1 @: U)%VS = U.
proof: Proof. have /andP[/eqP <- _] := vbasisP U; rewrite limg_span map_id_in // => u _. by rewrite lfunE. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq choice) mathcomp(fintype bigop finfun tuple) mathcomp(ssralg matrix mxalgebra zmodp)