In mathematics, an n + 1 cobordism is a triple (W,M,N), where W is an (n + 1)-dimensional manifold, whose boundary is the disjoint union of the n-dimensional manifolds M and N. In other words, it is a manifold with boundary whose boundary is partitioned in two.
Well first of all emos cut themselves as where to gothics just dont show any sadness or bordism because they have to control there emotions, they normally just keep emotion inside and dont cut themselves and emos normally are sad and filled with dscomfort as where gothics are full or anger and despite.