The extraordinary developments that took place in the field of mathematics in the 19th century, reveal the belief that mathematics has a grounding problem. Mathematicians have tried various methods to re-ground mathematics. Oneof these is the idea of re-ground mathematics with the propositions of logic. Mathematicians such as Schröder, Frege, Peano, Russell, Hilbert, Whitehaed are representatives of this trend. In the same century, logicists such as De Morgan, Boole and Jevons in England developed mathematical logic by re-expressing logic with the language of mathematics as an alternative to the Aristotelian logic. The aim of this article is the reflections of these two opposite concepts emerging in the field of mathematics and logic to the Ottoman Philosophers. For this purpose, the books of Ali Sedad and Salih Zeki, two important Turkish Philosopher of the period, were analyzed which are Mizanü’l-Ukûl fi’l-Mantık ve’l-Usûl and Mizân-ı Tefekkür respectively. It was determined that Ali Sedad was the first person to inform the Ottoman science world about Mathematical Logic, also called Boole Algebra, but he did not participate in the idea of mathematical logic. It was considered as Salih Zeki opposed idea of reduction of mathematics to logic, but he defended the idea of Mathematical logic which was put forward by English logician.