Quick answerAre Trạch vận tân án and Địa lý biện chứng the same book?
No. Địa lý biện chứng quyết yếu is a work attached to the name Shen Zhurang, while Trạch vận tân án is the large set whose introduction says he gathered scholars and disciples to compile it, and the cover of the translation records "Shen Zhurang and other authors". It should also be distinguished from Địa lý biện chính by Jiang Dahong, a different text that appeared earlier and comments on the Qing nang jing, the Tian yu jing and other chapters, and is regarded as the foundation of Huyen Khong studies.
From the article “Who Was Shen Zhureng and What Did the Shen School of Huyen Khong Studies Make Public?”
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