February 25th, 2011, 10:05 PM  #1 
Newbie Joined: Jan 2011 Posts: 25 Thanks: 0  how to type
i don't know how to write math type in this forum. "INTERSECTION from 1 to 2 of A_n" i know it in English but i don't know how to write in here. what do we call the opposite of intersection? and what is its symbole? moreover i don't know how to write in LIMITE!!!! PLEASE HELP ME TO WRITE THIS and tell me about it in english because nowadays i study in French!!! 
February 26th, 2011, 04:18 AM  #2 
Senior Member Joined: Apr 2007 Posts: 2,140 Thanks: 0 
I will study in French. Nowadays I study in Italian. If you want to learn how to type, use LaTeX. 

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