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Questions tagged [safek]

for questions about cases of doubt or uncertainty

7
votes
4answers
240 views

חזקה מעיקרא vs ספק

I am in the middle of מחלוקת with someone as to, if I originally had a חזקה and now there's a ספק to whether that status is still true, whether I maintain that original status or my status changes to ...
5
votes
2answers
202 views

Why do you need a chazakah and a sefeik sefeikah in Demai 1:1?

Maseches Demai opens up by addressing the "leniencies of Demai." As the Bartenura there explains, these lenient items are those which are essentially garbage - foods that people typically wouldn't eat ...
2
votes
1answer
81 views

Sages that questioned the existence of Hashem

While I'm sure there are individuals that perhaps struggled with their belief in Hashem and His "existence" were there ever any great chachamim (sages) from the throughout the generations that perhaps ...
2
votes
1answer
192 views

Why Bless on Gum if some say not to

According to Hacham Ovadia Yosef there is a Halacha of Safek Berachot Lehakel meaning that in any case that there is one (or two I can't remember but it doesn't matter for my example) Posekim that ...
5
votes
0answers
41 views

Has anyone tried out the Har Hakarmel bein hashemashos climb according to various Rishonim?

The Gemara on Shabbos 35a says: אמר רבי חנינא: הרוצה לידע שיעורו של רבי נחמיה יניח חמה בראש הכרמל, וירד ויטבול בים ויעלה, וזהו שיעורו של רבי נחמיה. ‏ Anyone who wants to know the shiur of ...
5
votes
0answers
108 views

How to deal with uncertainties in the Torah that lead to a change in meaning?

In Vayikra 14:19, there are different versions of the trop, and unlike most of them, this difference causes a change in the meaning of the words: וְכִפֶּ֕ר עַל־הַמִּטַּהֵ֖ר מִטֻּמְאָת֑וֹ (...
4
votes
0answers
43 views

How far must a publisher go to mitigate possible lashon hara?

This question is about sites that host community-contributed content, like Wikipedia, Reddit, or blogging platforms like LiveJournal communities. Suppose somebody posts something negative about an ...
3
votes
0answers
34 views

When did two days of Rosh Hodesh begin and the concept of “doubt”?

I'm trying to understand the historical workings of Rosh Hodesh prior to Sanhedrin. I assume that the entire concept of having possibly 2 days Rosh Hodesh was related to the timing of when witnesses ...
3
votes
0answers
89 views

How do we know the maternal line is pure?

This question may seem abstract and strange, but it is genuine. We obviously don't have ketubot of every marriage and certificates of every conversion, but yet, our assumption is that the Jewish ...
3
votes
0answers
81 views

Probabilities vs תמים ? Weather forecast etc

There is an issur to ask astrologers (Pess. 113; Shul.Ar. YD 179,1). And Rashi says (Dev. 13, 18) התהלך עמו בתמימות ותצפה לו ולא תחקור אחר העתידות So, is then a problem to ...compute probabilities? ...
3
votes
0answers
78 views

Can possibly “meaty” rice be used in sushi rolls?

I know that there is a prohibition to eat meat and fish together. But, I'm not sure if this prohibition applies to these two actual items or to other items that may have touched one of these two. For ...
2
votes
0answers
35 views

What is a Safek Muchlat? (i.e. unsure if he's a full-fledged Metzora)

The Mishna in Nazir 8:2 (Daf 59b and various other times in tractate Nazir) discusses a person who may or may not be a Metzora that is supposed to be sent out of the city walls. To quote with the ...
2
votes
0answers
91 views

Asking A Gentile To Perform Safeq Melakhah

Citing HaRav HID"A and Hakham 'Ovadiah A"H, HaRav Eliyahu Mansour states in his Daily Halacha that: The Hid"a [...] writes that it is permissible to ask a non-Jew to place a pot of cold liquid on a ...
2
votes
0answers
107 views

Tying 7 Huliot with Techelet MiDin Safek

The Tur writes (Orah Haim 11) that since in his days they didn't have Techelet they didn't have to be Makpid on the Huliot (the Rambam doesn't agree). Therefor the Posekim hold (Rosh, Tur, SH"A etc.) ...
1
vote
0answers
68 views

Are crayons allowed?

If a non-toxic (but also non-food) wax crayon is known/suspected to contain both meat (e.g. stearic acid; see e.g. here) and milk (e.g. dairy-derived palmitic acid), may one use it or does it qualify ...
1
vote
0answers
60 views

Practical suggestions for choosing between different nuschaot in the Torah

Unfortunately, it's not hard to find places in the Torah, and even more so in Nach, where we have a doubt about either the trop or the nekudot. (Or, more rarely, letters, but those are generally the ...
1
vote
0answers
53 views

Sefeikos and Mathematical Modelling

I heard from a colleague that there exists a Sefer where the conclusions of Chazal on the status of certain Sefeikos can be represented in the form of probability models1. Could anyone verify if ...
1
vote
0answers
128 views

Can one rely on a gentile's uncertain food description regarding brachot?

Let's say you have a dish in front of you but you're not certain what its ingredients are. You ask a Gentile who is familiar, and he says, "I've seen something like this before and it's usually made ...
1
vote
0answers
432 views

Is a Reform convert considered not-Jewish or safek Jewish?

I am basing this question on something I read somewhere: that a non-Jew is able to accept the Torah and obligate himself in mitzvot independent of the bet din (court) conversion procedure. A non-Jew ...
0
votes
0answers
54 views

Shabbat after losing track of time

I have been reviewing the laws of what to do if one loses track of the days and doesn't know what day is shabbat. The laws are summarized here. Is there any repercussion in terms of his life after he ...
0
votes
0answers
24 views

Doubt about Zemanim

There are several things that cannot be performed before Shekiah, and several things that cannot be done after. (For instance, one cannot daven Mincha after Shekiah.) What if one is unsure if Shekiah ...
0
votes
0answers
56 views

Is one allowed to sin a small sin to save himself from bringing a Chatas?

The Gemara in Shabbos says that Bibi bar Abaye asks if one can violate a Rabbinic commandment (unsticking a loaf from an oven) to save oneself from being "chayav a chattas". The Gemara says that ...