new file:   7-build.scm
	new file:   7-eqset.scm
	new file:   7-first.scm
	new file:   7-fullfun.scm
	new file:   7-fun.scm
	new file:   7-intersect.scm
	new file:   7-intersectall.scm
	new file:   7-makeset.scm
	new file:   7-pair.scm
	new file:   7-revrel.scm
	new file:   7-second.scm
	modified:   7-set.scm
	new file:   7-subset.scm
	new file:   7-third.scm
	new file:   7-union.scm