May one show a knife to a scholar on Yom Tov to examine whether it is fit for slaughter?

HolidaysYom TovSlaughter Laws

Synopsis

One may not show a knife to a scholar on Yom Tov to determine fitness, lest the scholar find it notched and instruct to sharpen it. However, a scholar who examined a knife for himself may lend it to others. The Rema permits examination on Yom Tov only in pressing situations.

Early Acharonim
Lenient
Strict
Lesser cited
Major authority

Discussion

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