Set v of ZG-generators for the submodule '

(-1+y)e_b

(-1+xy)e_c

(-1-y-xy-y²-xy²-y³-xy³)e_a +(-1-x)e_b +(1+x+yx+xyx+y²x+xy²x+y³x)e_c

The main table

Summary

How to use the table?