Cows are naturally vegetarians. Someone who drives a bus. A vegetarian is defined as an animal that eats no other animals, or parts of animals. Things that are adult. A white van man is a man who drives a white van. A human propelled vehicle, with two wheels The class of all male things. A mad cow is a cow that has been eating the brains of sheep. A newspaper. Broadsheets are usually considered to be more "high-brow" than tabloids. A newspaper. Tabloids are usually thought of as more "down-market" than broadsheets. All newspapers are either broadsheets or tabloids. 3 Someone who really likes animals Anyone that has a pet must like that pet. 42 A white van Mick is male and drives a white van. Due to the axiom concerning drivers, we know that Mick must be a man, and is therefore a white van man. The axiom about the reading material of a white van man then allows us to infer things about the Daily Mirror. 1