 | This article is rated Start-class on Wikipedia's content assessment scale. It is of interest to the following WikiProjects: | ||||||||||
| |||||||||||
Circular reasoning in the proof
editLet δ be the distance between x and C...
The distance δ is not defined.
... (yn) a sequence in C such that the distance squared between x and yn is below or equal to δ2 + 1/n.
The existence of such sequence is not demonstrated.