Logic Chapter 4 - Quiz 1

Which of the following is NOT one of the three crucial questions about an argument?

• Are the argument's terms clear?

• Is the argument entertaining?

• Are its supporting propositions true?

• Does its reasoning follow a good thinking pattern?

What do the three questions reveal about an argument?

• The length of the argument

• The standards used to say whether an argument is reasonable

• The popularity of the argument

• The historical context of the argument

How much is the moon drifting away from the earth each year?

• 1.5 inches

• 3 inches

• 6 inches

• 12 inches

What must we do to know that the moon orbits the earth?

• Believe that it does

• See it with our own eyes

• Read about it in a book

• Hear it from an expert

What is the first condition to know something?

• We must be able to read it in a book

• It must be popular

• We must be able to easily to understand it

• We must believe it is true.

What is an example of a test proposition mentioned in the text?

• Hobbits have tender feet

• Dragons breathe fire

• Unicorns have horns

• Elves are invisible

What is the purpose of philosophers' various definitions of knowledge?

• To answer questions about knowledge

• To confuse students

• To create new theories

• To simplify complex ideas

What is required for knowledge beyond believing something is true?

• That we assume it is true.

• That it is in fact false.

• That it is in fact true.

• That we ignore it.

What example is given to illustrate something we cannot "know"?

• All triangles have three sides.

• Water boils at 100°C.

• All squares have five sides.

• The sun rises in the east.

What is the role of a logician's second pair of glasses?

• To help see better.

• To decide if propositions are true.

• To ignore false propositions.

• To make assumptions.