loala in the holly quran and in the arabic language

certainly the meaning-letters play an important role in arabic language, so that the correct understanding of arabic prose and poetry and also the exalted meaning of the holly quran is dependent on knowledge of these letters, their difference and guidance applications. the fundamental and important role of these letters is subject of this research. at the beginning of this paper the following questions are discussed: is “loala” simple or complex? is there any dispute related to this subject? the project concentrates on different types of loala and their applications.  for example there are five different types of possible loala and also we discuss on the different ideas related to the analysis of noun after loala and analysis of pronoun after some of its applications.