[phpBB Debug] PHP Warning: in file [ROOT]/phpbb/auth/provider/godb.php on line 137: Undefined array key "PHPSESSID" [phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4129: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3008) [phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4129: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3008) [phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4129: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3008) [phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4129: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3008) Copyright - goproblems.com
Does anyone have concrete information on whether problems are or can be copyrighted? Basically if a problem is printed in a copyrighted book, are we allowed to copy the problem here or not?