Chabad.org — English translation + Rashi
Torah Temimah points to Shabbos 70b.
E-Daf.com — Shabbos 70b
HebrewBooks / Shas PDF
English: Even a half-measure.
Partial act liability — a partial prohibited act can still obligate a chatas when the full measure is completed under one unawareness.
A partial prohibited act (writing one letter of a Name, weaving one thread) can still obligate a chatas when the full measure is completed under one unawareness. The Gemara’s “even a half-measure” indicates that the chatas system does not require the entire prohibited quantum to be performed in a single continuous action; successive partial acts that together complete the measure under a continuous lack of awareness can combine to generate liability.