Practice Quiz 1 for Traditional Logic (Statements)

Translate the following statements to their symbolic equivalents.

1. Every BMW is expensive.
2. No Dell Computers are not high-tech machines.
3. Only the good die young. (That stinks, doesn’t it, if it’s true?)
4. A few cars are environmentally sound.
5. Not every person in this class will like this quiz.

State the quantity, quality and distribution for the statements (1-5) above.

Use conversion on each of the 5 statements above. Which are equivalent re-statements?

Use obversion on each of the the statements above. Which are equivalent re-statements?

Use contraposition on each of the statements above. Which are equivalent restatements?

If you know that it is false that every BMW is expensive, what do you know about the following?

Some BMW is not non-expensive.

All BMWs are expensive.

All non-expensive things are non BMWs.

No non-expensive thing is a BMW.

Some non-BMW is not non-expensive.

If you know that Only the good die young is true, what do you know about the following?

All those who die young are good.

All non-young dying persons are non-good. (What a hideously awful sentence.)

All non-good people are those who die young.

No good person dies young.

Some good person is not one who dies young.

Some non-young persons are non-good.

Young people are never good.