Learn the “גמרא דף יב: “אמר רב יהודה ( two dots on top Amud) until אמר רב יהודה (middle of the Amud)
How many mechitzas are required to create a Reshus Hayachid?
See רא”ש סוכה פרק א ס’ ט
Learn רמב”ם ה’שבת פרק י”ז הלכה ט
Major Question:
The Gemara seems to say clearly that only three walls are necessary to create a Reshus Hayachid. How does the Rambam who rules that four walls are required learn out gemara?
Learn רבינו חננאל on side of the Gemara