1. Proposition: I have black hair
Truth value: False
Truth conditions: For this to be true, I would need to have black hair.
Entailment: “I have black hair” entails that the color of my hair is black.
2. Proposition: There are giant sea creatures living in unexplored parts of the ocean.
Truth value: Unknown
Truth conditions: In order for this to be true, there would have to be giant sea creatures living in unexplored parts of the ocean.
Entailment: “There are giant sea creatures living in unexplored parts of the ocean” entails that there are parts of the ocean not yet investigated and massive marine animals live there.
3. Proposition: I have Arachnophobia
Truth value: True
Truth conditions: For this to be true, when I see a spider my heart rate would increase, and I would start to panic.
Entailment: “I have Arachnophobia” entails that I have an intense fear of spiders.