Assertion: bifurcation | /r/HasProperty | marginal
Facets:
Source sentences:
text: It may even happen that the bifurcation be marginal at all orders, in which case, if no flat term breaks the degeneracy, the fixed point $x_0\,=\,f_{\mu_c}(x_0)$ is the common end point of two segments of period two points that are exchanged by $f_{\mu_c}$.