I dont know how to get started with the following question: How do I show that in a game with a nonempty core the nucleolus always is a core element? I mean, if the core is nonempty its quite obvious there is a core element....
Think it has something to do with the sign of the excesses of core/non-core elements but I can't exactly figure it out.... Guess I cant do much more than that....
Someone a hint/suggestion or an example would be nice?
Thanks!