1. Correspondence Theory> A statement is true if it matches reality.Example:Statement: "The sun rises in the east."Truth check: The sun actually appears in the east when it rises — matches reality, so it’s true.2. Coherence Theory> A statement is true if it is consistent with a set of other beliefs or statements.Example:Statement: "All mammals have lungs. A dog is a mammal, so a dog has lungs."Truth check: This fits with the rest of what we believe about mammals, so it is considered true.3. Pragmatic Theory> A statement is true if it works or is useful in practice.Example:Statement: "Washing your hands before eating prevents sickness."Truth check: This works in real life to prevent disease, so it is accepted as true.