On the equivalence of the Lurie's $\mathrm{\infty }$-operads and dendroidal $\mathrm{\infty }$-operads

In this paper we prove the equivalence of two symmetric monoidal $\mathrm{\infty }$-categories of $\mathrm{\infty }$-operads, the one defined in Lurie’s book on Higher Algebra and the one based on dendroidal spaces. V.2 Some corrections made and exposition slightly altered.