Today's daf is dedicated in memory of Major Aryeh Ziering z"l who fell in battle this past Shabbat. Aryeh's parents, Mark and Debbie, are our closest friends and our children's lives have been intertwined since the day they were born. Aryeh was a role model for all my children. He was a natural leader whose modesty and love of life pervaded everything he did. May our learning be in memory of all those who have been killed and be a zechut to all our chayalim and for a refuah shleima to all the injured and for a safe and speedy return of all the hostages.  The Gemara cites three cases where someone bought/acquired something (a wife or land) that someone else intended to buy/acquire - is he considered an evil person for doing this? If someone betrothed a woman after thirty days and the object with which she was betrothed did not exist anymore on the thirtieth day, the betrothal is still valid - why? If another did not betroth her in those thirty days, but she changes her mind and doesn't want to be betrothed to him before the thirtieth day, can she change her mind? Rabbi Yochanan and Reish Lakish disagree - can her words of changing her mind undo her words of acceptance of the betrothal? Following two difficulties brought against Reish Lakish, he explains that she cannot change her mind because there was also an action of the betrothal and speech cannot undo speech and an action. But another version of their debate is brought that Reish Lakish holds that speech cannot cancel even speech alone. But because of difficulty against Reish Lakish's position, they hold like Rabbi Yochanan (in both versions).