TTS – Universalität mit CR (Beweis) M = {[e],[f],[e´],[f´], [x],[y],[x´],[y´]}  { [l p ], [r p ], [l p ´] |p  Lab}  {[x c ],[y c ],[x c ´],[y c ´] |c  Lab} A 1 = {[l p ]  [y] |p  Lab, p:    }  {[x]c[x c ´], [y c ´] [y] |c  V}  {[x]BS[y]} R 1 = {([r p ],[l p ])|p  Lab}  {([x c ´], [x c ] ), ([y c ], [y c ´]) |c  V} C 1 = {u#[r p ] $ [l p ´]#  [y] | u  V, p  Lab, p:   , |  |=2}  {u#[r p ] $ [l p ´]#  [y] | u  V 2  {B}, p  Lab, p:   , |  |=1} C 2 = {u#[y c ] $ [y´]#c[y], [x]#[x´] $ [x c ]#u | u,c  V}  {[x]B#[e´] $ [e]#u, u#[f] $ [f´]#d[y] | u  T} D = {(1, F 1, 2), (2, F 2, 1)} F 1 = [x]W + [y] F 2 =  c  V [x c ]W + [y c ] 