IntersectBlist( blist1, blist2 )
IntersectBlist intersects the boolean list blist1 with the boolean
list blist2, which must have the same length. This is equivalent to
assigning blist1[i]:= blist1[i] and blist2[i] for all i.
IntersectBlist returns nothing, it is only called to change blist1.
gap> blist1 := [ true, true, false, false ];;
gap> blist2 := [ true, false, true, false ];;
gap> IntersectBlist( blist1, blist2 );
gap> blist1;
[ true, false, false, false ]
The function IntersectionBlist (see IntersectionBlist) is the
nondestructive counterpart to the procedure IntersectBlist.
GAP 3.4.4