Study Guide Ketubot 110 Today's daf is sponsored by Michael Radwin in honor of Ariella Radwin's 45th birthday. "Your dedication to Torah learning is the inspiration for me to begin studying daf yomi. Mazel Tov!"  Admon and the rabbis disagree about two cases where one has a promissory note and wants to collect the money. In the first, the borrower (according to the first document) has a deed of sale with a later date that the creditor sold the borrower a piece of land. Can the borrower claim that the loan document is forged, as if it was real, why would the creditor have taken the money for the sale in exchange for land and not for the return of the loan? The Gemara limits the debate to a place where they generally write the document before the money is transferred. If two people each pull out a promissory note claiming the other owes them money, can the one whose promissory note has a later date claim that the earlier one is a forged document? Rav Nachman and Rav Sheshet also disagree about whether in a case like this each can collect from the other or since they each owe each other, no money needs to change hands. The Gemara limits their debate to a case where one had average-quality land and the other only had poor-quality land. Due to a difficulty with this explanation, a different suggestion is brought. A question is raised against Rav Sheshet from our Mishna and two different explanations are brought. However, a difficulty is raised with the second explanation. In what situations can spouses insist/not insist that the family move to a new place? When it comes to moving to a different area, one cannot insist on moving, but if it is to move to Israel, then they can insist their spouse move, or if the spouse refuses, it can be grounds for divorce. If the woman does not agree to move, she forfeits her ketuba, if it is the man, he must give her the ketuba money. If one wants to leave Israel, the other does not need to agree and if it is the man who wants to leave, it is grounds for divorce. What currency is used to pay the ketuba? On what does it depend? Regarding this issue, they mention an important debate about whether ketuba is by Torah law or rabbinic law, which explains the difference between Rashbag and the rabbis in the Mishna. Better to live in Israel in a city that is mostly idol worshippers than in a city outside of Israel which is mostly Jews as one who lives outside of Israel, it is as if they do not have a God, as is derived from a verse in the Torah, Vayikra 25:38.