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What value must an object have to effect kiddushin? The shiur analyzes the machloket between Rava and Rav Yosef on whether appraisal (shuma) must occur before or after kiddushin. According to the Rambam (רמב"ם), the debate centers on kayitz (objective monetary value) versus smichas daas (subjective acceptance), and whether sheve kesef must represent actual cash value or merely perceived worth.
This shiur explores the gemara (גמרא) in Kiddushin 7b-8a concerning the dispute between Rava and Rav Yosef regarding whether kiddushin can be effected with an object whose value is uncertain. The fundamental question is whether one needs shuma (appraisal) before the kiddushin or whether appraisal afterward suffices. The shiur frames two distinct interpretations of how the Rambam (רמב"ם) understands this sugya. According to the lashon kama (first version) in the gemara, Rava and Rav Yosef argue about smichas daas—whether the woman must knowingly accept something of known value. Rashi (רש"י) understands this as requiring that at the moment of kiddushin, both parties know the object's worth. The Rambam, however, introduces a critical distinction: the case of shiroin (silks and fine garments) is unique because a woman inherently desires such items, thereby eliminating concerns of smichas daas. For other objects, even according to Rava who holds ein tzorech shuma, there remains a deficiency in smichas daas that must be resolved.
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Kiddushin 7b-8a
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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.