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dominated strategies (strong and weak definitions). Def: si' is strictly dominated by si for player i if for all s-i?S-i, ?i(si,s-i)> ? i(si',s-i).Def: si' is weakly dominated by si for player i if for all s-i?S-i, ?i(si,s-i)= ? i(si',s-i)and for some s-i?S-i, ?i(si,s-i)> ? i(si',s-i)(and si is an undominated strategy for player i if it is not dominated by any other).
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