Another quick question about locating and such...

ID:176673
 
Dec 20 2002, 8:11 pm
How would i make it so it looks for two and not just one?
Here is my code and thanks in advance:

(locate(/obj/mining/Copper) in usr)
Dec 20 2002, 10:10 pm
 
if(locate(/obj/one) in usr && locate(/obj/two) in usr)
    //stuff