Assertion: foliation | /r/HasAspect | compact leaf
Facets:
Source sentences:
text: A foliation of codimension 1 on a three-dimensional sphere has a compact leaf  and cannot be analytic , although Reeb constructed a foliation of class $ C ^
text: A foliation of codimension 1 on a three-dimensional sphere has a compact leaf  and cannot be analytic , although Reeb constructed a foliation of class $ C ^