Talk:Index of a subgroup

Latest comment: 3 years ago by Ebony Jackson in topic Definition

Definition edit

Is the informal definition in the introduction helpful? Why not just start with the number of cosets? Would it be better to say cardinality? Quotient group (talk) 20:55, 14 October 2009 (UTC)Reply

Informal definitions are usually useful to somebody. Charles Matthews (talk) 15:00, 16 October 2009 (UTC)Reply
OK, but I've moved the formal definition up a bit. Quotient group (talk) 19:27, 18 October 2009 (UTC)Reply
I too think that for a math page like this, it makes more sense to start with the actual definition, and only afterwards to explain intuitively what it is trying to measure. Ebony Jackson (talk) 00:15, 24 August 2020 (UTC)Reply