Translation:Mishnah/Seder Moed/Tractate Eruvin/Chapter 1/6

Introduction
This mishnah is going to discuss the physical dimensions necessary for a valid lechi. A lechi is a post (the composition of which is discussed later), which can be put on either side of an open alley in order to create an eruv.

Hebrew Text

 * לחיין שאמרו,
 * גובהן עשרה טפחים ורחבן ועוביין כל שהוא.
 * רבי יוסי אומר, רחבן שלושה טפחים.

Explanation
This mishnah presents a disagreement between Rabbi Yose and the rest of the rabbis. Although they all agree that a lehi must be 10 tefachim high, Rb. Yose feels that it also must be 3 amot thick, while the rest of the rabbis feel that the thickness is irrelevant.