Rabbi Baruch Bodenheim: Gemara Shabbos: Perek Kirah, יום רביעי, Cheshvan 21, Daf 42b Sugya – Kli Rishon/Sheini (11/12/25)
Quickly review גמרא מב: איבעיא until “סבר רב יוסף”
The Mishna delineates difference between a Kli Rishon and a Kli Sheini.
What is the status of liquids while they are being poured from a Kli Rishon?
Learn תוס’ “אבל who brings a machlokes whether they have a status of Kli Rishon or Kli Sheini – עירוי כלי ראשון ככלי ראשון או ככלי שני
What is the basis for the opinion that it has the status of Kli Rishon?
What is the basis for the opinion that it has the status of Kli Sheini?
List the proofs for each position
The Rishonim discuss this machlokes at length and bring different proofs
See ר”ן
https://hebrewbooks.org/pdfpager.aspx?req=37953&st=&pgnum=589
& רא”ש
https://hebrewbooks.org/pdfpager.aspx?req=37953&st=&pgnum=355
(they are lengthy – see it quickly to get an overview)
In conclusion there are four opinions
Learn אגלי טל מלאכה אופה ס’ ל”א ס”ק א who lists all four and how each opinion answers the proofs against them.
https://hebrewbooks.org/pdfpager.aspx?req=14401&st=&pgnum=255
https://hebrewbooks.org/pdfpager.aspx?req=14401&st=&pgnum=256
