1. Proposition: I have a pet cat.

Truth value: True

Truth conditions: For this to be true, I would need to have a pet cat.

Entailment: “I have a cat” entails that I have a pet cat with me at home.

2. Proposition: There is a sound wave frequency coming from deep in unreachable space.

Truth value: True.

Truth conditions: In order for this to be true, there would have to be a frequency of sound waves coming from some unknown location in deep unreachable space.

Entailment: “There is a sound wave frequency coming from deep in unreachable space” entails that there sound waves that are detectable coming from deep unreachable space.

3. Proposition: I have a fear of heights.

Truth value: True

Truth conditions: For this to be true, I would have to be afraid to be in high places.

Entailment: “I have a fear of heights” entails that I have a fear of being in high places.