!set exolist  =!char 1 to -2 of ABA,ABC,propalg,propalg2,invertib,invcoeff,matop,multone4x4,multiplicab,multpart3x3,multpart4x4,propmult,AB,trace2x2,trace3x3,trace4x4,trianginv3x3,
!set titlelist=!char 1 to -2 of ABA,ABC,Algebraic properties,Algebraic properties II,Invertibility,Invertibility and coefficients,Matrix operations,Mult-one 4x4,Multiplicability,Partial multiplication 3x3,Partial multiplication 4x4,Properties of multiplication,Size of AB,Trace 2x2,Trace 3x3,Trace 4x4,Triangular invertibility 3x3,
!set exototal =!itemcnt $exolist

