im unsure as to when addition in such cases means times and when its the sum..and when under the operation of multiplication, it means to the power of and when it means times...
thanks
find all the left cosets for the subgroup <[5]> ={[0],[5],[10]}in Z(15) integer 15.
im just wondering, under addition, are the left cosets
1+ <[5]> ={[1],[6].[11]} etc
or is it of the form 1<[5]> ={[0],[5],[10]}, 2<[5]> ={[0],[5],[10]},
3<[5]> ={[0]}
im not sure which it should be..