Humpty Dumpty sits on a all every day while having lunch. The wall sometimes breaks. A person sitting on the all falls if the wall breaks.
Which one of the statements below is logically valid and can be inferred from the above sentences?
- Humpty Dumpty always falls while having lunch
- Humpty Dumpty does not fall sometimes while having lunch
- Humpty Dumpty never falls during dinner
- When Humpty Dumpty does not sit on the wall, the wall does not break