Reference for Chullin 139:22

ההוא מיעוט דבגואי מהו למישדייה בתר רוב אבר

But surely we have learnt before now the principle that the greater part is like the whole! It would mean therefore that only half came out but it included the greater part of a limb!<span class="x" onmousemove="('comment',' And the Mishnah teaches us that in such a case the lesser part of the limb, which is inside, is to be counted with the rest of the limb, and thus render the young fully born.');">⁹</span>

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