Set v of ZG-generators for the submodule '

(-1+x)e_a

ye_a+(-x+y³)e_b+(1+y)e_c

(1-y-yx)e_a+(-x+x⁴yx)e_b+(1-xy-x²y-x³y+x⁵-x⁴y)e_c

The main table

Summary

How to use the table?