Techum Shabbos (Part II) Creating Halachic Cities

[Music] as we've established six houses together form one halachic city for truman and it's all considered like four amis and the two thousand armist the ones entitled to walk in each direction of shabbos to not begin until it leaves city now sometimes we can merge together two cities and form one super city how do we do that so the first example is the before submission is that after you leave the city before you even begin the two thousand almost of tom shamus you're entitled to karafe we make a kaffir around the city well there's a kafir min it means we give an area of 70 and two-thirds amis or in our language 125 feet around the city that's considered an extension of the city and only after that do you begin the 2000 amis of trimshabus now let's say you have two cities that are near each other so much so that the car fifa's of the two cities overlap that means the last house in city a is less than 250 feet from the first house in city b so the cara fifa is the extensions of the two cities overlap then the mishnah says that the two cities are considered like one and the two thousand almost who starts off in city a do not begin until he leaves city b and the 2000 amis of somebody who's starting in city b do not begin until he's made out from the other end of city a so you have a tremendous ear a super city that you get before you even start your 2000 almost of tromshabas and now we could take this even a step farther and create a super duper city because is that before you start your 2000 amis of kamshabas when you leave a city you square off the city we've mentioned this in terms of with houses and fenced in areas that if they're not a perfect square you square it off tempe is the scheife shabbos like the gemara says in irvine daffodil you square it off and only after that do you begin the of 2000 shabbas so here also when you have the alaska city you don't just start your 2000 amis when you exit the city at one end rather we square off the city so if you have a round city or say that squiggly on any side most of our cities are like that you square them off now in the olden days and times of the gamora some cities had to be squared off and some of them were naturally square because they had walls around the city so very often the wall was built as a straight line and the wall of the city was like a fence similarly nowadays if you have a city that has an arab around it it's possible that the area of on let's just say the eastern side of the city is one straight line so then there's no squaring off to do on that side because we have a natural straight line at the edge of the city but in most cases most alaska cities are jagged or rounded on all four sides so before we start the two thousand arms of trom shabbas we first have to square it off we make a ribua we square off the cities so one could refer to the braisa and afternoon ham and alvin irvin and see over there many details in many alakas in terms of squaring all cities now let's say the squaring off of one city which is now an extension of that city juts into another city or juts into the squaring off of a different city so the acceptable sack of most paiskim khaznish and others is that these two cities are now considered one similarly to what we established a few minutes ago we established previously to have two car fifa's overlap if the two cities come within 250 feet of each other they are now considered one super city the same applies in terms of the ribua the squared off area of the city if the squared off area of city a johnson the city b or just jots into the square of area of city b now city a and b are considered one big city and one does not start their 2000 amis of trump shabbos until they have left city a and b until they have left the super squaring off of the whole situation of halachic sydney a and alaka city b now when we talk about squaring off cities so there's one very important thing to know the gemara says an irvine now if you have an ear i see it caches a city that's shaped like a rainbow most people know that caches is a rainbow if you have a city that's shaped like a rainbow or we could say like the leather s so if the from the two ends of the rainbow if the two ends of the hess is more than four thousand arms more than seven thousand and eighty feet so then we cannot be mirabea we cannot square off on this side it's nearer geste uras it appears like two separate cities because the two extents of the city the two ends of the sea are so far from each other without houses in between filling it up so in such a case we do not get aribua we do not get the square off so we do not get the square off and therefore somebody who leaves the city starting from somewhere in the middle of the caches in the middle of the rainbow and he starts walking out his two thousand elements for trump shabbos are gonna begin pretty much right away similarly also if another city juts into the this area this seven thousand foot area between the two ends of the city the two cities are not going to become unlockedly attached or not become one because there's no reboot given there's no squaring off given to the caches so if the distance between the two russia caches the two heads of the rainbow is less than seven thousand feet then we do square it off we do close that up in fact many places can feel that that's even stronger than rebuild we fill it in almost as if it's part of the city we imagine like the gemara says kill the molly baltimore as if it's filled up with houses and courtyards however if the distance between the two heads of the city it's more than 4 000 more than 7080 feet then there's no squaring off done at all similarly if you have an ira seeker gam gam is a greek letter it's an example of a shape of a city it's something akin to a backwards capital l so you have a c that's shaped like this like an l if between the two ends of the gum between the top of the gum and the foot of the gum the distance is more on the diagonal is more than four thousand almost more than seven thousand eighty feet we do not square off the gum if the distance is less than those seven thousand eighty feet we do square off the gum and now becomes like a triangle and now we further square it off by creating a mirror image to make it into a full proper square like we always like to make our halachic cities into squares at rectangles however if the distance between the two ends is more than four thousand almost more than seven thousand and eighty feet we cannot square it off and therefore somebody who walks out this gum on shabbos he's walking through the middle of the gamut two thousand armies for tom shabas already begin and if there's another city that juts into the this area between the two ends of the gum that does not make that other city connected to our city which is shaped like a gum like a backwards l or rather they're each considered like separate cities in regards to trim shabbos