Proposition:  I have three dogs.

Truth Value: True

Truth Condition: I would have at least three dogs.

Entailment: “I have three dogs.” entails “I have exactly three dogs.”

Proposition: Water is made of helium and oxygen.

Truth Value: False

Truth Condition: For this to be true, water would need to be composed of hydrogen and oxygen.

Entailment: “Water is made of helium and oxygen” entails that “Water is made of two elements, hydrogen and oxygen.”

Proposition: There exists life on other planets besides earth in the milky way.

Truth Value: Unknown

Truth Condition: Life exists on other planets besides earth in the milky way.

Entailment: “There exists life on other planets besides earth in the milky way.” Would entail “life existing on other planets in the milky way besides earth.”