" "Dat sounds like berry good argumentation, boss.

But if there are any people who think that argumentation ever consists of one part alone they will be able to say that it is often sufficient to carry-on an argumentation in this way.

In consequence of his skill in that art, he loved argumentation.

Mike honestly believed he had met an American devil, and it required no little argumentation to persuade him of the contrary.

If you are unwilling to draw this inference, and prefer inferring what follows, "Therefore she has committed incest," you will have terminated your argumentation but you will have missed an evident and natural summing up.