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סימן שס״חSiman 368

Orach Chaim · Hilchos Eruvin

When the Eruv Is Spoiled After It Was Made

5 seifim in the Shulchan Aruch, with a gloss of the Rema in seif ה; 4 seifim in the Shulchan Aruch HaRav. When must the residents be informed in order to redo or complete the eruv? How much must it contain, and what of its remnants and of moldy bread?

The four levels of study

LEVEL 01

רמת המתחילים

Foundations — Introduction

A pedagogic introduction: Hebrew text of the Mechaber, the Rema's gloss and the Mishnah Berurah, a clear English rendering, key concepts unpacked, practical cases and a summary.

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LEVEL 02

רמת הלמדן

Lamdan — In-depth pilpul

Deep pilpul: Gemara sources, shittos of the Rishonim and Acharonim, foundational chakiros, classic machlokesim, and practical nafka minah.

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LEVEL 03

חזרה וסיכום

Master Synthesis

A master-level synthesis: central axiom, hierarchy of concepts, decision trees, mnemonics, pitfalls to avoid, and a summary chart.

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LEVEL 04

דעת הרב

Daat HaRav — Shitah of the Alter Rebbe

The Shulchan Aruch HaRav of the Alter Rebbe on this siman: 4 seifim.

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