/ 420 Grandsire Triples / Arranged by J. White 7 bells g=+3.1.7.1.7.1.7.1.7.1.7.1 p=g,+7.1 b=g,+3.1 s=g,+3.123 u=s,p,s u1=u,"@ s s (3 leads)" v=b,p,b,p v1=v,"@ - - (4 leads)" w=p,b,b,p w1=w,"@ - - (4 leads)" h="1234567 1 2 3" l="------- -----" f="Repeat." A1=u1,v1,w1,w1 A=u,v,w,w Prove h,l,A1,l,A,f