Talk:Plus construction

Latest comment: 16 years ago by Pincheguey in topic Pincheguey's comment

Pincheguey's comment edit

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