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The shiur analyzes Kiddushin 3b, examining why the Gemara (גמרא) brings a different pasuk than on daf beis to derive the methods of kiddushin. Rashi (רש"י) and Tosafot present fundamentally different understandings of the kal vachomer: Rashi learns kesef from the kinyan of biyah, while Tosafot learn kesef as a kinyan from amah ivriyah's kinyan structure, treating the entire framework as kinyanim rather than ishus-based relationships.
The shiur opens with a fundamental question: why does the Gemara (גמרא) on daf gimmel aleph cite a different pasuk to derive the laws of kiddushin than the Gemara on daf beis aleph? Rashi (רש"י) explains that the pasuk here concludes with "veyatza," teaching that a get is required to dissolve the relationship. This establishes that kiddushin creates a status requiring a get for termination—demonstrating that we're dealing with a real kicha (acquisition) that equates to geirushin (divorce). The Rambam (רמב"ם) similarly brings different pesukim in different contexts: in Yad HaChazakah he cites the pasuk from Meis Shemera to teach that kinyan is required, while in Sefer HaMitzvos he brings this parsha's pasuk to teach the derachim (methods) of kinyan. The Gemara derives kiddushin through a kal vachomer, but Rashi and Tosafot fundamentally disagree on its structure. According to Rashi, the kal vachomer compares kesef to biyah: since biyah works by isha, kal vachomer kesef should work. The proof that kesef is stronger comes from amah ivriyah—where biyah doesn't work but kesef does. According to Tosafot, the kal vachomer compares the kinyan of isha to the kinyan of amah ivriyah: since kesef works by amah ivriyah (which is not niknis with biyah), kal vachomer it should work by isha (which is niknis with biyah). The difference is fundamental: Rashi learns kinyan kesef from kinyan biyah of isha, using amah ivriyah merely as evidence that kesef is stronger. Tosafot learn kinyan kesef of isha from kinyan kesef of amah ivriyah, using biyah as the measure to show amah ivriyah is more chamur.
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Kiddushin 3b
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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.
