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I've seen in the Shulchan Aruch the hand symbol ( ☜ ) appearing quite a few times.
What does it do? Does it reference to mforshim on the side?
In Orach Chayim, it refers to a comment by the Yad Efrayim, in the margin.
The Business Halacha Institute tells me that in Choshen Mishpat it points to a chidush [a novel thought or opinion].