The author intends to prove a revolutionary idea about the relationship of wolves and mice in this ecosystem. What are the two established points supporting his argument, and what is the third point he must prove? How does he go about proving this?

One day, Farley makes the connection between the wolves and the mice while watching Angeline, who begins to perform a sort of ballet during which she catches and eats no fewer than twenty three mice. It becomes increasingly evident to Farley that mice are their main diet source. In an effort to better understand the relationship between mice and wolves, he sets dozens of traps for mice to study gender, age, etc., but his efforts are thwarted when George inadvertently happens upon one of his trap lines and winds up with at least half a dozen traps hanging from various places. He feels terrible when he sees George lose his composure for the first time, yipping and streaking for home, shedding traps in his wake. Fortunately, although George seems aware that Farley is responsible for the traps, it does nothing to sour their relationship.