Meršić izvorište Zenonova paradoksa ‘Ahilej’ vidi u dvosmislenostima pojma beskonačnosti.Te se dvosmislenosti prema njem (i tradiciji koju započinje Gregorius od St. Vincenta) razrješuju pojmom konvergentnoga geometrijskoga niza. Pritom Meršić daje opću ontološku teoriju s prednošću konačnoga pred beskonačnim, te razvija modalno tumačenje diferencijalnoga računa polazeći od Newtonova pojma fluksije.Meršić sees the origin of Zeno’s paradox ‘Achilles’ in the ambiguities of the concept of the infinity. According to him (and to the tradition started by Gregory St. Vincent), those ambiguities are resolved by the concept of convergent geometric series. In this connection, Meršić proposes a general ontological theory with the priority of the finite over the infinite, and, proceeding from Newton’s concept of fluxion, he develops a modal interpretation of differential calculus
