Ltac CopR :=
 let tpoint := constr:(Tpoint) in
 let col := constr:(Col) in
 let cop := constr:(Coplanar) in
   assert_ncols; Cop_refl tpoint col cop.

Lemma l10_14 : forall P P' A B, P <> P' -> A <> B -> Reflect P P' A B -> TS A B P P'.