DAAT · LEVEL 3 — MASTER SYNTHESIS
Siman שנ"ד
סימן שנ"ד · דִּין בּוֹר וְאַשְׁפָּה בִּרְשׁוּת הָרַבִּים
Recap and mnemonics for review
📑 Synthesis outline
- The central axiom of the siman
- Key concepts condensed
- The pit: near or far
- Decision tree
- The ash heap: public or private
- Mnemonic בּוֹר
- Pitfalls to avoid
- Practical cases
- Final summary table
- The practical commandments
1. The Central Axiom
Siman שנ"ד in one sentence.
A hollow pit or a raised ash heap, in the middle of the reshus harabim, are by their measurements "reshuyos hayachid". But transferring between them and a neighboring house is permitted only if one removes the fear of error: by proximity (less than 4 tefachim), by the height of the rim (10 tefachim), or by the stability of the heap (public).
A hollow pit or a raised ash heap, in the middle of the reshus harabim, are by their measurements "reshuyos hayachid". But transferring between them and a neighboring house is permitted only if one removes the fear of error: by proximity (less than 4 tefachim), by the height of the rim (10 tefachim), or by the stability of the heap (public).
2. Key concepts condensed
| Concept | Definition | Application |
|---|---|---|
| בּוֹר | Hollow pit of 10 tefachim | Reshus hayachid in reshus harabim |
| חוּלְיָא | Earth rim around the pit | Completes the wall to 10 tefachim |
| תּוֹךְ ד' טְפָחִים | Gap of less than 4 tefachim | Not trodden by the public → mekom petur |
| אַשְׁפָּה | Ash heap (10 high, 4 wide) | Public = permitted; private = forbidden |
| שֶׁמָּא יְפַנֶּה | "He may clear it" | The concern that forbids the private heap |
3. The pit: near or far
Pit within 4 tefachim of the house → the gap is not trodden by the public → mekom petur → one draws for the house, even with a low rim.
↓
Pit 4 tefachim or further → the gap is a true reshus harabim → a rim (chulyah) of 10 tefachim is required, making the pit a clear reshus hayachid.
4. Decision tree
Q1: Is it a pit?
↓ YES
Q2: Is the pit within 4 tefachim of the house?
↓ YES → one draws (low rim sufficient); NO → rim of 10 required
Q3: Is it an ash heap (10 high, 4 wide)?
↓ Public → one may throw; Private → forbidden
→ At the slightest doubt → consult your Rav.
5. The ash heap: public or private
| Type of heap | Ruling | Reason |
|---|---|---|
| Public heap, 10 high, 4 wide | One may throw from a nearby house | Stable; only refuse is thrown there → no "rolling and retrieving" |
| Private heap | Forbidden | It might be removed → one would then dump onto the bare reshus harabim |
6. Mnemonic בּוֹר
ב — בְּתוֹךְ ד' טְפָחִים: pit within 4 tefachim of the house → the gap is mekom petur, one draws even without a high rim.
ו — וְחוּלְיָא עֲשָׂרָה: pit further than 4 tefachim → a rim of 10 tefachim is required.
ר — רַבִּים מֻתָּר: public ash heap → permitted to throw onto it; private heap → forbidden (might be removed).
7. Pitfalls to avoid
Pitfall 1: Believing that a hollow pit in the street can always be used. If it is far from the house, a rim of 10 tefachim is required.
Pitfall 2: Treating a private trash bin like a public heap. The private heap is forbidden — it might be removed.
Pitfall 3: Forgetting that proximity (less than 4 tefachim) is sufficient without any rim — the gap is then a mekom petur.
Pitfall 4: Believing that the concern of "rolling and retrieving" applies to the public heap. Only refuse is thrown there, which one would not retrieve.
8. Practical cases
| Situation | Analysis | Conduct |
|---|---|---|
| Pit adjacent to the house | Gap < 4 tefachim = mekom petur | One draws, low rim sufficient |
| Pit far from the house | Gap = reshus harabim | Rim of 10 tefachim required |
| Public container, tall and wide | Stable public heap | One may throw refuse |
| Movable private trash bin | Liable to be removed | Forbidden to transfer |
9. Final summary table
| Element | Detail |
|---|---|
| Subject of the siman | Pit and ash heap in reshus harabim |
| Number of seifim | 2 |
| Mishnah Berurah | 15 entries |
| Talmudic source | עירובין צט ע"א-ע"ב |
| Golden rule | Proximity, height of the rim, or stability of the heap removes the fear of error |
| Practical decision | Measure distance and height; consult your Rav |
10. The practical commandments of Siman שנ"ד
For daily conduct
- Pit near the house (less than 4 tefachim): one draws, even with a low rim.
- Pit further away: only with a rim of 10 tefachim.
- Public heap / container (10 high, 4 wide): one may throw refuse from a nearby house.
- Private heap / trash bin: forbidden to transfer.
- In case of doubt — consult your Rav.
- Deep pilpul — Level 2; Chabad shittah — Level 4.
📚 Recap of the study path
You have studied Siman שנ"ד in 3 levels:
You have studied Siman שנ"ד in 3 levels:
- 🌱 Level 1 — Base: the 2 seifim, English translation, halachic concepts
- ⚡ Level 2 — Lamdan: Talmudic sources, shittos of the Rishonim, machlokos, nafka minos
- ✨ Level 3 — Synthesis: axiom, mnemonic, decision tree, practical commandments