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The earliest classification of the Purvas and Angas in Jain Agamas is found in the Samavayanga Sutra, where the number of Purvas is mentioned as fourteen and the number of Angas as twelve. There are two traditions of knowledge in Jain literature: Purvadhara and Dvadashaangaveta. Purvadharas have a higher position in terms of knowledge. The ascetics who possessed the knowledge of the fourteen Purvas were called Shrutakevali. The Purvas contained a detailed discussion of all objects and subjects, therefore their extent and evidence was very vast and profound. No good thing was left untouched by the scope of the Purvas. There are different opinions of scholars regarding the composition of the Purvas. According to the opinion of Acharya Abhaydeva and others, the Purva literature was composed before the Dvadashaangi. This is why it is called Purva. Some thinkers believe that the Purvas are the collection of scriptures from the tradition of Lord Parshvanath. Due to the subject matter of the Purvas being very serious, difficult and inaccessible, it was only useful for specific क्षयोपशमधारियों. In order to make the subject useful for ordinary people, the Angas were composed. As stated in the Visheshaavashyak Bhashya, "Although there is a complete revelation of knowledge in the Bhutvad or Drishtivad, but for the benefit of people with limited intellect, the rest of the scriptures were extracted from it, and on the basis of that, the entire literature was created." Currently, the Purvas are not considered separate from the Dvadashaangi. Drishtivad is the twelfth Anga. Until the creation of the Pracharang and other Anga literature, the entire collection of scriptures was known as Purva or Drishtivad. When the Angas were created, Drishtivad was given a place as the twelfth Anga after the eleven Angas including Pracharang. In Agama literature, there is a description of both types of ascetics who read the twelve Angas and those who read the fourteen Purvas, but both refer to the same thing. Those who were Chaturdashapurvi were also Dvadashaangavit because the twelfth Anga itself contains the fourteen Purvas. The second classification of Agamas is done as Angapravesh and Angabahya. Angapravesh: Angabahya Acharya Jinabhadragani Kshamasraman, while analyzing Angapravesh and Angabahya, said: 1. Chaudasapubya pannatta tam jaha - Uppayapubba............tah vindusar. 2. (a) Prathama purva tasya sarvapravachanat purva kriyamanatvat - Samavayanga batti. (b) Sarvashrutat purva kriyate iti purvani, utpadapurvadiini chaturdasha. (c) Jamha titthakaro titthpavattaanakale ganadharana savvasuttaadharattanato puvvam puvvagatasuttattham bhasati tamha punvam ti bhanita. - Nandi Churni 3. Jaivi ya bhuyaavaae savvasya ya bhagamassa poyaro. Nijjuhana taha vi hu dummehe pappa itthi ya. - Visheshaavashyak Bhashya Gatha, 551.