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Why does the Gemara (גמרא) require bitul chametz when small crumbs should already be automatically batel? The shiur develops the Ran's distinction that hefker occurs when an object lacks chashuv to its owner - not because one doesn't care about others taking it, but because the object itself isn't considered significant. This reframes how we understand the relationship between bitul and hefker in determining what constitutes true ownership.
This shiur provides an in-depth analysis of Pesachim 6a, focusing on the complex relationship between bitul chametz (nullification of leaven) and the concept of hefker (ownerless property). The Gemara (גמרא) asks why we need bitul for bal yera'eh u'val yimatzei (the prohibitions against seeing and possessing chametz) when perurim (crumbs) should already be batel automatically due to their insignificant size. Rabbi Zweig examines multiple approaches to this question, particularly focusing on Rashi (רש"י)'s position that after bitul, chametz becomes hefker. He contrasts this with the Ran's understanding that hefker occurs when an object lacks chashuv (significance) to its owner - not because one doesn't care if others take it, but because the object itself isn't considered important. The discussion explores whether the measure of what's considered batel should be based on size (less than a kazayit) or monetary value (less than a shaveh perutah), with particular attention to how this applies differently to chametz on Pesach (פסח) versus other areas of halacha (הלכה). The shiur then transitions into a broader philosophical discussion about ownership, work, and self-definition, connecting the concepts of Shemitah and Yovel to the idea that true spiritual fulfillment comes only through being an ameil b'Torah (תורה) (one who toils in Torah), rather than defining oneself through material possessions or professional achievements. Rabbi Zweig emphasizes that this lesson is particularly relevant before Shavuos, as it relates to the fundamental nature of Kabbalat HaTorah (receiving the Torah) and the proper approach to Torah learning as one's primary source of identity and self-worth.
Pesachim 6a
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Why does the Gemara present a kal v'chomer for chuppah making kiddushin based on kesef not being maichel b'terumah, only to reject it? The shiur reveals that even the rejected kal v'chomer establishes a fundamental yesod: kiddushin is a kinyan for ishus (marital relationship), not merely a kinyan in hilchos kinyanim. The second kal v'chomer—from chuppah being gomeres—raises Tosafos's famous question.
Is the kesef used in kiddushin a true kinyan (acquisition), or merely a symbolic means of establishing marriage? The shiur analyzes multiple interpretations of the Gemara's derivation from ki yikach ki'ach mi'Sayeffron, exploring whether marriage constitutes ownership, and develops three fundamental approaches: (1) The Gemara proves ishus is a kinyan, (2) ishus is not a kinyan but uses kinyan-like means, or (3) ishus is a kinyan but the kesef may not be a ma'aseh kinyan. The Rambam's position—calling kesef "midivrei sofrim"—is explained as distinguishing between cross-referencing concepts versus borrowing terminology.
Why does the Mishna alternate between the language of "kinyan" (acquisition) and "kiddushin" (sanctification) when describing marriage? The shiur develops a fundamental distinction: marriage has two separate aspects—a kinyan dimension (ownership) and a kedusha dimension (sanctified relationship). Either aspect can initiate the bond, and understanding this dual nature resolves multiple textual and halachic questions throughout the sugya.
Does kiddushei shetar require a shevah pruta? The Ran presents two approaches to the Rif's position. The shiur develops the Ran's second pshat that shetar kiddushin functions as a hachnah (exchange) rather than a mere kinyan nesina. This reading has profound implications for isuri hana'ah, mechubar, and the relationship between kesef and shetar.
