Discourse conflict and the hegemony of political Islam in the process of the Islamic Revolution of Iran

The present research is written in response to this sociological question, what are the reasons that led to the superiority of the discourse of Islamism in the process of struggles leading to the Islamic Revolution of Iran. In a space where the discourses of liberal nationalism and Marxism had an effective presence, how was Islamism able to establish its semantic system as a hegemonic discourse. In this regard, the discourse analysis theory of Lacla and Moff has been used as the theoretical and methodological basis of this article. Because the theory of discourse analysis is more compatible with the nature of the subject and provides a more accurate explanation of it. From this point of view, Islamism is considered as a discourse that, in order to fight against the ruling Pahlavi discourse and to establish its own semantic system, marginalized the ideologies of liberal nationalism and Marxism, and is recognized as the undisputed winner of the revolutionary battle. This research considers the main reason for the superiority of the discourse of Islamism in the conflict with rival discourses to be Imam Khomeini's ability to organize a comprehensive discourse that includes most of the concepts of liberal nationalism and Marxism discourses, and by creating a metaphorical space and covering a wide range of revolutionaries' demands, the existence of rival discourses has challenged