Does the Erev Shabbat work restriction apply to casual/incidental work (derech ara'i) or only to established/regular work (derech keva)?

ShabbatErev Shabbat

Synopsis

The Rema rules that the restriction applies only to work performed in an established, regular manner; casual, incidental work for a short time is permitted, including writing a greeting letter.

Early Acharonim
Late Acharonim
Lenient
Strict
Lesser cited
Major authority

Discussion

Discussion coming soon.

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