Proof of two supercongruences of truncated hypergeometric series ${}_4{F}_3$

Guo-Shuai Mao

In this paper, we prove two supercongruences conjectured by Z.-W. Sun via the Wilf-Zeilberger method. One of them is, for any prime $p>3$, \begin{align*} \sum_{n=0}^{(p-1)/2}\frac{…