Arukh HaShulchan, Orach Chaim 313:22-29

Sugya Map

• Issue: The parameters of melakhet kotev (writing) on Shabbat via the Arukh HaShulchan’s lens on "transient" vs. "permanent" markings.
• Nafka Mina: Whether writing with a substance that does not endure (e.g., ink on glass, or finger-tracing) constitutes a chiyuv of kotev.
• Primary Sources: Shabbat 104b, Shulchan Arukh, Orach Chaim 340:3, Arukh HaShulchan, Orach Chaim 313:22-29.

Text Snapshot

• Arukh HaShulchan 313:22: "כל שאינו מתקיים אינו בכלל כתיבה."
• Nuance: The author emphasizes the kayama (permanence) requirement. He distinguishes between kotev (a creative act) and mere reshimu (marking). The lashon implies that if the medium lacks inherent durability, the ma'aseh is void of kotev status.

Readings

• Rambam (Hilchot Shabbat 11:15): Asserts that writing must be mitkayem. The Arukh HaShulchan leverages this to argue that if the climate or substrate prevents permanence, the issur is nullified ab initio.
• Maggid Mishneh (ad loc): Notes that even if it isn't "permanent" by standard definition, the act of kotev requires a davar ha-mitkayem. The Arukh HaShulchan pushes this to the edge—if it fades naturally, it’s not kotev.

Friction

• Kushya: If kotev is defined by the result (the sign), why does the durability of the ink matter? If I write a letter, I have "written," regardless of whether the ink is erased five minutes later.
• Terutz: The Arukh HaShulchan (313:28) maintains that kotev is a melakha of yetzira (creation). A non-permanent mark is not a "creation" but a transient phenomenon, failing the melechet machshevet required for issur.

Intertext

• Cross-ref: Shulchan Arukh, Orach Chaim 340:3 regarding writing on water or glass. The Arukh HaShulchan synthesizes these to confirm that "writing" requires a shiyur of time to be considered a ma'aseh.

Psak/Practice

The Arukh HaShulchan effectively permits actions that result in temporary marks (e.g., fogging a mirror, tracing in condensation), as these lack the yesod of kotev. However, one must be cautious regarding "erasable" digital displays, which present a machloket regarding whether the lit pixel constitutes kotev or boneh.

Takeaway

Permanence is the sine qua non of kotev; if the mark lacks the telush (intent) and capacity for durability, the melakha is not triggered.