Lǐ Guò 李過 (lifedates not securely recorded; fl. late twelfth century, scholarly work c. 1180–1198), zì Jìbiàn 季辨, hào Xīxī 西谿, of Xìnghuà 興化 in Fújiàn (modern Pútián / Xiānyóu region, central Fújiàn). CBDB id 40716; no lifedates recorded, but a registered note that the 1198 auto-preface to his Yì shuō says “almost twenty years to complete.”
Career trajectory unrecorded in the standard biographical sources; the Sìkù tiyao’s emphasis on his late-life loss of sight and isolation — “could not have his teachers and friends correct him” — suggests an essentially private scholarly career, possibly local-gentry rather than office-holding. The CBDB has multiple Sòng Lǐ Guò entries (id 40716 with the Yì-preface note; id 688152 with no further detail); the Yì-author is the former.
Within the Kanripo corpus he is the author of KR1a0049 Xīxī Yì shuō 西谿易說 — a 12-juan gǔYì (ancient-Yì) historical-textual reconstruction with a substantial 1-juan introductory discussion (xù shuō) followed by passage-by-passage exposition of the Shàng jīng and Xià jīng, but no coverage of the Xìcí and below. The work was composed over nearly twenty years and completed in 1198 (Qìngyuán wùwǔ).
Methodologically distinctive for his (a) substantial documentary use of the Sān fén 三墳 text recovered by Máo Jiàn 毛漸 in Yuánfēng era (later regarded as a Sòng-period forgery), (b) preservation of Guīzàng fragments of independent value (now partly recuperable through the 1993 Wángjiātái excavated bamboo-strip Guīzàng), and (c) systematic sāntǒng-calendrical reading of the three-Yì’s opening-hexagram differences.
Sympathetic verdict by the Sìkù editors: “his crime of disordering the canon and his merit of glossing the canon roughly counterbalance” — one of the more humane judgments in the Sìkù tíyào corpus.