Learn the “גמרא דף י. “תני לוי (four lines from bottom of the Amud) until דף י: “ואמאי יעשה
Questions:
Why doesn’t a single post help to divide the size of the opening of the Mavui?
See רש”י דף י. “אין
See ח’ רע”א who asks on Rashi the gemara at this stage does not know of the concept of אתי אוירא ומבטל?
How does placing a panel four Amos in the direction of the depth of the Mavui remove the issue of the size of the opening of the Mavui greater than ten Amos?
Learn ריטב”א דף י: “עושה who presents two different ways to explain the solution.
Learn תוס’ דף י: “עושה פס גבוה
Is Tosfos explaining like Rashi or the Ritva?
Why don’t we say אתי אוירא ומבטל on the panel of four Amos?
See ריטב”א and רשב”א for an answer