Phil. 103: Introduction to Logic
The Structure of Arguments
Spring 2008 c
2008 GFDL
1 Diagramming Arguments
Directions:First, indicate whether each problem below is an arguments. If
a passage is not an argument, explain why it is not. Second, if the passage is
an argument, diagram the structure of the argument by referring to the num-
bered statements and by using conventional diagramming symbols. Third,
state whether the argument is deductive or inductive. (40 points)
1. (1) Looking up at a painting is different from simply looking at a paint-
ing, (2) for there is an element of awe in the experience of looking at
what is above us, particularly when it is at considerable height.
2. (1) Microbes can acclimatize themselves to such substances as sulphonamides
and antibiotics if they encounter them in small doses. (2) Therefore,
when using these drugs in practice, it is important to give as massive
a dose as the patient will tolerate right at the start.
3. (1) John didn’t get much sleep last night. (2) He has dark circles under
his eyes, and (3) he looks tired.
