Pi: Peter is in either Tokyo or Nagoya.
P2: Peter is not in Tokyo.
C: Peter is in Nagoya.
The argument presented is a combination of three statements, Pi, P2, and c. PI and P2 are the argument’s premises or supporting reasons, and c is the conclusion. The important thing to see here is that the three statements are connected via an inferential relation: if Pi and P2 are proven to be true, then c will be true by inference. The inferential relation implies a dependence of a conclusion upon its premise(s). A conclusion is an inferential product produced by its premise(s). Or, in other words, a conclusion is proven by its premise(s). Note that a different kind of arguments - i.e. inductive arguments - can also be used to illustrate basically the same point about the inferential relation.
In LWPC, to learn how to build a logical argument is to learn how to build an inferential relation linking a thesis statement and its premise(s). Since LWPC starts with building a thesis statement, building the inferential relation is finding the premise or premises that contribute to forming the proof of the thesis statement. This practice is significantly different from the conventional studies of logic including both formal and informal logic. Although the conventional logic studies are also interested in understanding how a premise and