List of Articles یقین Open Access Article Abstract Page Full-Text 1 - Wittgenstein V G. E. Moore A comparative study between Wittgenstein and Moore about the two concepts of knowledge and certainty mohammad saied abdollahi Mohammad Ali Abdollahi Open Access Article Abstract Page Full-Text 2 - Evaluation of Rational Perception in Ghazali’sPerspective Seyyed Bagher Mirabdallahi Open Access Article Abstract Page Full-Text 3 - Examining Avrom Stroll's point of view about Wittgenstein's two different understandings of the foundations of certain beliefs mohammad saied abdollahi Mohammad Ali Abdollahi