Please consider reopening https://math.stackexchange.com/q/4511317 The post is edited and the context is quite clear as OP mentioned in a [comment][1]. [1]: https://math.stackexchange.com/questions/4511317/show-that-the-l-p-norm-of-x-as-p-to-0-is-the-support-of-x#comment9472264_4511317