University of Qom Journal of Philosophical Theological Research 1735-9791 5 13-14 2003 09 23 Proper Function Theory About warranty Proper Function Theory About warranty 2 28 350 10.22091/pfk.2003.350 FA Sayad Hosain Azimi Dokht Journal Article 2015 08 25 Epistemology has discussed a branch of philosophy in the twentieth century is very important. A turning point in the history of philosophy, beginning with Kant's ideas, in the twentieth century by focusing on the epistemological view called traditional foundationalism and epistemological introversion, slow to Khvdgrfth the three-page article titled Edmund Gettier: "Is Justified Bavrsadq, science "It's comforting to have. To dare to say that this article is intended for all those who have followed his epistemology. In this article, the definition of ternary agreed by most linguists knowledge about science by referring cases of Gettier Mykhvand.ps several challenges, one of the functions of epistemology, a theory of the conditions of science that can answer his objections. One of the theories that among the incentives scheme could be observed in response to protests Gettier, view the correct functioning of the guarantee or the third component of science or knowledge. This theory of religion in the twentieth century great philosopher of the well-known Alvin Plantinga raised is. In this article we try to give a short account of the view that those interested will be able to understand the nature and the way these theories are good. Epistemology has discussed a branch of philosophy in the twentieth century is very important. A turning point in the history of philosophy, beginning with Kant's ideas, in the twentieth century by focusing on the epistemological view called traditional foundationalism and epistemological introversion, slow to Khvdgrfth the three-page article titled Edmund Gettier: "Is Justified Bavrsadq, science "It's comforting to have. To dare to say that this article is intended for all those who have followed his epistemology. In this article, the definition of ternary agreed by most linguists knowledge about science by referring cases of Gettier Mykhvand.ps several challenges, one of the functions of epistemology, a theory of the conditions of science that can answer his objections. One of the theories that among the incentives scheme could be observed in response to protests Gettier, view the correct functioning of the guarantee or the third component of science or knowledge. This theory of religion in the twentieth century great philosopher of the well-known Alvin Plantinga raised is. In this article we try to give a short account of the view that those interested will be able to understand the nature and the way these theories are good. https://pfk.qom.ac.ir/article_350_fada71228db9e17dd8517bad059efbe4.pdf