Commentary for Makkot 3:7
בר פדא אומר ק"ו ומה המחלל אינו מתחלל הבא לחלל ולא חילל אינו דין שלא יתחלל מתקיף לה רבינא אם כן בטלת תורת עדים זוממין
Bar Pada said It stands to reason, a fortiori, since a priest who successfully takes away priesthood from his fellow keeps his priesthood, a priest who is unsuccessful remains a priest. Ravina argues, if so, false witnesses can never be punishede
Rashi on Makkot
One who profanes (others) does not himself become profane - A priest who marries a divorcee, that disqualifies his offspring, he himself does not become disqualified:
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Rashi on Makkot
One who comes to disqualify and does not (successfully) disqualify - A false witness that wants to disqualify and does not (successfuly) disqualify, how much more so etc. (alt. is it not logical etc.):
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Rashi on Makkot
If so - If you come to expound this a fortiori inference with false witnesses, you will have nullified (the application of) the law of false witnesses:
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