can anyone help me on this?
I would like to show that the vector reward:
$(v(1,2)+v(1,3)-v(1,2,3), v(1,2,3)-v(1,3), v(1,2,3)-v(1,2))$ is an imputation of the core
I know that it needs to respect the group and individual rationality but I do not know how to start. Can anyone give an hint?