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What makes an object worth a certain value for kiddushin or pidyon haben when its market price is lower? The shiur analyzes the principle of "lididi shaveh li" (to me it's worth it), comparing Rashi (רש"י)'s approach—requiring explicit valuation even when actual worth is clear—with the Rambam (רמב"ם)'s view that subjective value can create halachic worth. The machloket between Rav Yosef and Rabbi centers on whether uncertain value requires formal assessment.
This shiur provides an in-depth analysis of Kiddushin 8a, focusing on the halachic concept of "lididi shaveh li" (to me it is worth) and how subjective valuation affects the validity of kiddushin and pidyon haben. The Gemara (גמרא) discusses whether an object worth less than a perutah in market value can nevertheless serve as valid kesef kiddushin or payment for pidyon haben if the recipient values it at the required amount. The shiur begins by examining the fundamental dispute between Rav Yosef and Rabbi regarding kayitz (evaluation/assessment). According to Rashi (רש"י), the machlokes concerns whether one must explicitly state the value of an object even when it is clearly worth a shaveh perutah. Rav Yosef holds that without kayitz—without explicitly attributing value—the kiddushin is invalid even if the object is objectively worth a perutah. Rabbi disagrees, holding that explicit valuation is unnecessary when the value is clear. According to the Rambam (רמב"ם), however, the entire dispute applies only when we are uncertain whether the object reaches the threshold of a perutah; if we know it's worth a perutah, everyone agrees it's valid.
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Kiddushin 8a
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