LECTURE NOTES IN ANALYSIS (2011)
《LECTURE NOTES IN ANALYSIS (2011)》 · 第 361 页 · Section 8.1「Elementary Prime Number Estimates」，Definition 8.1
The von Mangoldt function $\Lambda(n)$ is the arithmetic function $\Lambda(n)=\log p$ if $n=p^k$, and $\Lambda(n)=0$ otherwise.