These two sentence contradict to each other????
http://leagueoflegends.wikia.com/wiki/Alistar
From Alistar's wikipedia, the ability detail of Alistar's R Unbreakable Will, it says "The damage reduction occurs after armor and magic resistance. "
http://leagueoflegends.wikia.com/wiki/Damage_Reduction#Decreasing_damage_received
From Damage modifier's wikipedia, under Damage received modifier , there is a sentence saying "** Damage reduction from armor and magic resistance and from any other sources stack multiplicatively**. "
So if the damage reduction from armor and magic resistance stack multiplicatively with alistar's R Unbreakable Will (being the so-called other sorced.", the sentence saying " The damage reduction occurs after armor and magic resistance." has no meaning at all, stacking multiplicatively means there is no such thing as application of before or after??