User blog comment:Vel!/1+w/@comment-5982810-20141011211100/@comment-5982810-20141011212358

The statement 1+w=w is meaningless in the function (n)[a]. There is no need to either ask this question, and it does not change anything about the way the function operates regardless of what you decide. The indexes have no value in and of themselves. They are equivalent to the concept of delimiters as used in ExE, just that they aren't between numerical arguments. (n)[a] is only defined through the way indexes are replaced with indexes, and the successor function.