Hi There are two arrays
@a = [[a,b,c]...[d,e]...[f]...[g,h]...] @b = [[...],[...,a,..,c,...,b...],[d],[e],[g...h]...] How can I make an arithmetic to detected that. if (element of array @a include by the element of array @b one time){ True; Else { False ; } **************************************************************************************** Note: If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the message and deleting it from your computer. Thank you. ****************************************************************************************