Bai Saku (Ming) wrote "Shosho Koi" (Reconsideration of Shoko) to prove that the 'imitated old text version of Shokyo' in use was a gisho (apocryphal book).
梅サク(明)は『尚書考異』を著し、通行の「書経偽古文尚書」が偽書であることを証明しようとした。