Siddhasena

Siddhasēna Divākara () was a "jain monk" in the fifth century CE who wrote works on Jain philosophy and epistemology. He was like the illuminating lamp of the Jain order and therefore came to be known as "Divākara" "Lamp-Maker". He is credited with the authorship of many books, most of which are not available. "Sanmatitarka" (‘The Logic of the True Doctrine’) is the first major Jain work on logic written in Sanskrit.
Life.
Siddhasena Divakara is said to have lived in fourth or fifth century CE. He was a Brahmin by birth and a scholar. He was initiated by "Acharya" Vruddhavadi. According to the tradition, Siddhasena Divakara once planned to translate all the Jaina works from prakrit to Sanskrit. He was asked by his master to visit all the Jain temples as a punishment. He thus visited the Jain temples for twelve years. He then came upon a Linga temple in Ujjain. He slept at the temple with his feet towards the Linga, which is a symbol of Shiva. King Vikramaditya had him beaten for the sin on request of the devotees. However, with miraculous powers, Siddhasena Divakara made that the King's wife receive the beating instead of him. He was then set free. He broke the Linga by raising his hand and an idol of Parshvanatha emerged from there.
Thought.
Siddhasena's main contribution in the Sanmatitarka is his analysis of the Jain theory of Anekantavada. According to Jeffery Long, Siddhasena divides the seven classical Jain "nayas" (standpoints, viewpoints) into two categories: "those which affirm the substantiality of existence (dravyāstikanayas) and those which affirm the impermanent, changing aspects of existence (paryāyāstikanayas)." This view sees the best account of reality as one which includes permanence and impermanence, identity and difference in a complex set of contradictory relations. Siddhasena also argued that the number of possible "nayas" or viewpoints of reality is potentially limitless. He then goes on to correlate each of the nayas with the positions of Indian philosophical schools, showing how each view is not only partial but also one sided.
Works.
He was the author of "Sammati-tarka-prakarana" and is said to have written the "Nyāyāvatāra", "Sanmati sutra" and "Kalyan Mandir stotra".