(R. Ba cited Rav Yehudah citing Shmuel): A wall [between Chatzeros 10 tall] and ladders were put close to it on each side, they make two Eruvin, but not one.

(R. Yosi bei R. Bun): Since [the ladders] are not opposite each other, they are not considered like openings.

(Beraisa): All steps (PNEI MEIR) in the Mikdash rose an Amah and recessed three [Amos], except for the ramp of the Mizbe'ach, which sloped six Tefachim (one Amah) amidst three and a half [Amos] and a finger and a third of a finger, for the Mizbe'ach is nine Amos tall (without the corners; the ramp rose to the level of the fire, nine Amos above the ground) and the ramp was 32 long. (One divides 32 by nine and gets three and a half and one part in 18. An 18th of an Amah (24 fingers) is one and a third fingers.)

If he made a ledge [less than 10 tall, and the wall is less than 10 taller than it] along the entire wall, and [even] it is four Tefachim thick, [the Chatzeros] can be Me'arev two (individually), but not one. (Even though it is thick, the step is too great to be considered a ladder, so it is not judged like an opening);

If [the ledge is] four Amos thick (it is like a Chatzer. Since it is less than 10 above the ground, and the wall is less than 10 above it, they are all considered one Chatzer, so), they are Me'arev one, but not two.

Limitation: [The Mishnah distinguishes between a breach up to 10 Amos and more than 10] for a long wall [between Chatzeros], but for a short wall, [it depends on] the majority.

What is long and what is short? Whenever the majority is more than 10, this is long. If [the majority] is less than 10, [due to the breach they are Me'arev one, but not two if it is] the majority [of the length of the wall].

Limitation: [The Mishnah says that a breach up to 10 Amos, they can be Me'arev one or two, for it is like an opening] for [a breach] in the middle, but not if it is on the side.

What is considered on the side and what is in the middle? If there remains four [Tefachim of wall until the end], this is in the middle. If not, it is on the side [and they are Me'arev one, but not two. We explained this like MEICHAL HA'MAYIM.]