Integration of Both the Derivatives with Respect to $\mathscr{P}$-Paths and Approximative Derivatives

In the present paper, in terms of generalized absolute continuity, we present a descriptive characteristic of the primitive with respect to a system of $\mathscr P$-paths and study the relationship between the Denjoy–Khinchin integral and the Henstock $H_{\mathscr P}$-integral.