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.
This may not be the only conclusion you can draw, but I'm pretty sure you can at least conclude that "no puppy that plays with kangaroos has a loud bark"--i.e., "every puppy that plays with kangaroos has a quiet bark."
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