REVIEW QUESTIONS ON GEMARA AND RASHI
prepared by Rabbi Eliezer Chrysler
Kollel Iyun Hadaf, Jerusalem
Previous dafEruvin 77
ERUVIN 77 - sponsored by a generous grant from an anonymous donor. Kollel Iyun Hadaf is indebted to him for his encouragement and support and prays that Hashem will repay him in kind.
(a) What did Rav Dimi quote Rebbi Yochanan as saying with regard to a
Makom Petur which serves as a source for his previous statement (that both
owners are permitted to carry on to a wall between two courtyards, which
is less than four Tefachim wide, and to eat there?
(b) Rav disagrees with Rebbi Yochanan in our Sugya.
Does that mean that
he also disagrees with his ruling regarding a Makom Petur?
(a) What does Rav Nachman mean when he says that if a wall is ten Tefachim
higher than one Chatzer, but less from the upper-level one that adjoins
it, one gives it to the latter Chatzer, and why is that?
(b) The same applies to a ditch that is ten Tefachim deep from the one
Chatzer, but less from the lower-level adjoining Chatzer.
Why does Rav
Nachman need to teach us both cases? Why would we not know the one from
(a) What will be the Din, if one reduces the height of the wall by fixing
an object that is less than four Tefachim long to the foot of the wall?
May one use the top section of wall directly above that point?
(b) What will be the Din if he reduces the height of the wall by removing
a small section less than four Tefachim across from the top?
Why is the
Din here different than that of the previous case?
(a) Under which conditions will a large overturned dish (which is four by
four Tefachim) placed at the foot of the wall, be effective to serve as a
Answers to questions
(b) Why will the fact that it has a lip (that now contains earth which
will inevitably be pulled up when the dish is pulled out of the earth) not
suffice, to render it fixed to the ground?
(a) An Egyptian ladder is *not* considered a Pesach, a ladder from Tzuri
*is*. What is the technical difference between these two kinds of
ladders, and why should their Halachos differ?
(b) How wide must a ladder be to qualify as a Pesach?
(c) Under what conditions will two ladders, one on either side of a wall
dividing two courtyards, be considered a Pesach, if the wall is ...
- ... less than four Tefachim wide?
- ... four Tefachim or more wide?
(a) If two wooden platforms are built next to the wall, one on the ground
and the other, on stilts above the first, under which two possible sets of
conditions will this constitute a Pesach?
Answers to questions
(b) Under which conditions will two steps or floating stairs be considered