Review “גמרא דף כו: “א”ל רב פפא לאביי” (middle of the Amud) until the two dots.
Questions:
What does רב ששת (who explained the opinions of ר”א and the רבנן ) hold in regards to these new considerations being introduced whether a person lives in a house without having rights in the courtyard?
Learn מהרש”א
https://hebrewbooks.org/pdfpager.aspx?req=37954&st=&pgnum=299
Learn קרן אורה who disagrees with the מהרש”א