1 03/31/83  or
 2 
 3 Syntax:  or {tf_args}
 4 
 5 
 6 Syntax as active function:  [or {tf_args}]
 7 
 8 
 9 Function:  returns true if any tf_arg is equal to true; otherwise it
10 returns false.  If there are no tf_args, it returns the "false" "or"
11 identity.  If any tf_arg has a value other than true or false, an
12 error message is printed.