A very large enclosed field whose walls were not made for “dira” - for living purposes, the field is biblically considered a private domain (so if one threw in an item from the street they’d be liable) but the rabbis said it is forbidden to carry 4 Amos inside bc it’s like a kamelis.

The nooks off the street where traffic sometimes spills are Karmelis. The area between the pillars where merchandise is hung may be a karmelis. The seats in front of the pillars is certainly a karmelis.

Someone threw 4 Amos in a street and it stuck onto the face of a brick within 10 tefachim they are liable. Above 10 tefachim they are exempt (public domains don’t reach higher than 10 tefachim). If it landed on top of the brick, then within 3 tefachim they are liable, bc ppl would step on the top of the brick, but higher than 3 tefachim, they are exempt bc the public wouldn’t step there. Small thrunbushes send excrement within 3 tefachim is a dispute how to view them.

Dimensions of a karmelis- only something 4 tefachim wide. Anything smaller is automatically considered makom petur. Another leniency is that karmelis does not extend its height above 10 tefachim, jsut like a public domain. This is in contrast to private domain, whose walls create division up to the Heaven.

A house whose height is 9 tefachim to the ceiling and the ceiling is 1 tefach thick- the roof is a private domain but the inside of the house is a karmelis and won’t can’t carry 4 Amos inside. If they dig a 4x4 hole in the floor, then the hole turns into a private domain and then entire house follows, bc we have a rule that crevices off a private domain are considered a private domain.

Small crevices off private domain are like private domain. What about small crevices off public domain? It’s a dispute. Like a wall in a street with small crevices. Are those crevices a reshus harabim or not.