Talk:Plus construction

Pincheguey's comment

If the aforementioned subgroup is the entire fundamental group, this second step is unnecessary.

This statement is false. Also in this case you have to attach three-cells, one for each attached two-cell. Pincheguey 12:20, 21 June 2007 (UTC)[reply]

Retrieved from "https://en.wikipedia.org/w/index.php?title=Talk:Plus_construction&oldid=1212691679"