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## Main Question or Discussion Point

show that in a set that has n people at least 2 of them have the same amount of acquaintances in the set

well what i tried is that first of all if we have n people one person can know n-1 people within the set so having a set of n people at least 2 of them should have the same amount of acquaintances in the set

but, i dont think its right, maybe someone could guide me please, i would appreciate it

i really think that i havent fully understood how to use this principle here

well what i tried is that first of all if we have n people one person can know n-1 people within the set so having a set of n people at least 2 of them should have the same amount of acquaintances in the set

but, i dont think its right, maybe someone could guide me please, i would appreciate it

i really think that i havent fully understood how to use this principle here