List of Articles ماهيت Open Access Article Abstract Page Full-Text 1 - Historical Development and Pre-Suppositions of the Theory of the Principiality of Existence in Tusi’s Analysis Hashem Ghorbani Open Access Article Abstract Page Full-Text 2 - Principle of the Identity of Quiddity and Existence in the Truth in Islamic Tradition and Greek Philosophy Huda Habibimanesh Shamsollah Seraj Open Access Article Abstract Page Full-Text 3 - Philosophy based on Mulla Sadra’s Philosophy Ali Arshad Riyahi Somayeh Malleki Open Access Article Abstract Page Full-Text 4 - Essentialism and the Issue of Knowledge in Mulla Sadra and Heidegger Mohammad Reza Balanian Open Access Article Abstract Page Full-Text 5 - Suhrawardi’s Background in Advocating Mentally-Positedness of Existence Mahmoud Hedayatafza Zeynab Bostani Open Access Article Abstract Page Full-Text 6 - Historical Development of the Concept of Hyle (Matter) in the Works of Muslim Thinkers Mahmoud Hedayatafza Mohammad Javad Rezaeirah Open Access Article Abstract Page Full-Text 7 - A Study of Priority and Posteriority through Substantiality and its Historical Background in Islamic Philosophy Saeed Anvari Khadijeh Hashemi Attar Open Access Article Abstract Page Full-Text 8 - Principiality of Existence and Change in the Logic of Definition Musa Malayeri Open Access Article Abstract Page Full-Text 9 - A Study of Suhrawardi’s and Mulla Sadra’s Interpretations of the Ontological Relationship between Quiddity and Existence in Ibn Sina’s Philosophy Open Access Article Abstract Page Full-Text 10 - Evidence on the Presence of the Principiality of Existence in Ibn Sina’s Thoughts in the Viewpoint of the Transcendent Philosophy Mostafa Momeni Open Access Article Abstract Page Full-Text 11 - Existence, Annexation, and Derivation: A Study of Mir Damad’s Theory on Being Existent and Derivation Davood Hosseini Open Access Article Abstract Page Full-Text 12 - A Comparative Study of Ibn Sina’s and Mulla Sadra’s Philosophical Principles of Intermediary Development Based on Religious Texts Seyyed Sadra al-Din Taheri امينه احمدي Open Access Article Abstract Page Full-Text 13 - Roles of the Affective and Voluntary Spheres of Faith in its Bilateral Relationship with Moral Acts in Mullā Ṣadrā’s View Mehdi Zamani Open Access Article Abstract Page Full-Text 14 - Range of the Interpretations of Quiddative Concepts Based on the Principiality of Existence in the View of Contemporary Commentators of Sadrian Wisdom Rohollah Adineh Roghayeh Mosavi Open Access Article Abstract Page Full-Text 15 - A Review of Mullā Ṣadrā’s Responses to the Problem of the Necessity of Subsuming One Quiddity into two Categories in the Discussion of Mental Existence Mohammad Hadi Tavakkoli