What is the correct interpretation of the Mishnah's case — does it address a courtyard smaller than 4 amot (Tosafot/Rosh approach) or any courtyard regardless of size (Rambam approach)?
Synopsis
A fundamental dispute between Rishonim about the scenario in the Mishnah: Tosafot and Rosh understand it concerns a sub-4-amot courtyard where wastewater flows to reshut ha-rabim; the Rambam understands it as an independent case about the prohibition of carrying in a shared uneruved courtyard.
More in Forgot Eruv — Bitul Reshut Rules
When two upper-story dwellings (aliyot) open onto a shared courtyard and only one has dug a pit (guma) for wastewater disposal, may both residents pour wastewater if they made a joint eruv?
3 opinions
Does the prohibition on the resident without an eruv apply even if she dug her own pit?
2 opinions
May the eruved resident (who dug the pit) pour wastewater directly into her partner's pit when they did not make a joint eruv?
2 opinions
When neither resident made a joint eruv but each made an individual eruv, may the resident who dug the pit pour her wastewater directly into her partner's pit?
1 opinions
If the courtyard is 4 amot or larger, are both residents permitted to pour wastewater even without a joint eruv and without a pit?
3 opinions
Does the Rema's leniency for a 4-amot courtyard apply even when the courtyard is exactly 4 amot (not more)?
1 opinions
Is the principle of 'kecho b'chatzer she-einah meorevet' (indirect force in an uneruved courtyard is permitted) limited to a private courtyard or does it extend to a karmelit?
1 opinions
In the case where one resident made an eruv and the other did not, is the one without an eruv forbidden even to pour wastewater inside her own dwelling (not in the courtyard)?
2 opinions
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Discussion
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