Chapter 7, Mishna 7, 8
Which eruvs must be established with bread? If with bread, why must we use whole loaves of bread? What is challah and how does it relate to the food used to establish an eruv? May we contribute to an eruv using money? What is different about giving money to a baker vs. a doctor in this regard, if both are my neighbors in a courtyard? Why is a sale not final until the buyer performs a “”kinyan” – a physical act of acquisition? How does this relate to professional gamblers and why are they disqualified from testifying in a rabbinic court of law?