Here are some statements about puppies. Of course, you may not agree with all of them. But just suppose they were ALL correct, what conclusion could you draw from them?

(i) No puppy that chases cats is unteachable.

(ii) No puppy without a black nose will play with a Kangaroo.

(iii) Puppies with floppy ears always chase cats.

(iv) No teachable puppy has a loud bark.

(v) No puppies have black noses unless they have floppy ears.

(In reply to solution? by michean michaud)

No, not all puppies with black noses will play with kangaroos; it's the other way around. Any puppy that plays with kangaroos has a black nose. These and all other puppies with black noses will have floppy ears. These and all other puppies with floppy ears will chase cats. These and all other puppies that chase cats will be teachable. These and all other teachable puppies will lack a loud bark (either bark softly or not at all).

Posted by Charlie on 2003-02-04 09:39:27