Al Farabi and Avicenna Approach about Sciences and its branches; Predisciplinary, interdisciplinary or multidisciplinary approach

In Al Farabi and Avicenna point of view، Knowledge is synonymous with philosophy. This root divided to theoretical and practical branches. From these two derived different types of specialized sciences. In this cluster diagram come together two pictures of unity and plurality of specialized disciplines. However، this position is not the equivalent of modern disciplinary and interdisciplinary approach. It''s not even equivalent of unity of these two together. This kind of Science is different of Science in modern period. This paper wants to show the Al Farabi and Avicenna point of view about Sciences is not the disciplinary and interdisciplinary approach. At the end، I use the word of Predisciplinary for Al Farabi and Avicenna''s view.