May one open or close a book on Shabbat when letters are written on the edges of its pages?

ShabbatMelachot

Synopsis

Some prohibit opening such a book (erasing the letters) and closing it (writing them), but the Rema and many acharonim permit it because it is designed to be opened and closed regularly.

Early Acharonim
Late Acharonim
Lenient
Strict
Lesser cited
Major authority

Discussion

Discussion coming soon.

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