Reference for Menachot 44:4

ודלמא עד דאיכא מין במינו ועולין קשיא

But perhaps the reason [why one does not neutralize the other] is because here is a mixture of like kinds!<span class="x" onmousemove="('comment',' I.e., the blood of the goat mixed with the blood of the bullock.');">²</span>

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