He did prove his point using Stedman's. It clearly pointed out that a fetus is not an infant, child, etc. again, the difference is the ability to breath independently. I'm not sure anyone can make that more plain.
Actually, we were discussing the definitions of "fetus" and "baby", Mestemia correctly pointing out that I had incorrectly used the term "baby" to define a foetus. Though, a fetus, regardless of its ability to breathe independently, technically counts as a child (that is, in the general definition of the word), being defined essentially as "
the unborn human child in its eighth week of development". Why do think that another way of saying that a woman is pregnant is that she's "
with child"? You mustn't conflate the terms "fetus", "infant", and "baby". I made that mistake, so I know what I'm saying. In order to clear some of the confusion label-wise, allow me to offer an example involving religion, specifically Protestant Christianity:
Lets say that term "child" represents Protestant Christianity. Confusing your terms "fetus", "baby", and "infant" (and also saying that a fetus is not a child), is analogous to saying that a Baptist, a Pentecostal, a Methodist, and a Lutheran are the same, and that Baptists are not Protestants. How grave a mistake. The four categories have somewhat varying beliefs and vastly different modes of worship. Yet, each one counts as being Protestant.