Theories about Theories
- Realism: Theories tell us what is really doing on.
- Operationalism: Every term is defined by the method of measuring it. (Bridgeman)(Eddington: Physics is the study of pointer readings)
- Campbell's account: Dictionary and Analogy
- Theories as mnemonics
- Popper: all theories are false but refuting them is fun.
- Fruitfulness, realism and Mathematics