Logical positivism Flashcards
The Vienna Circle
Group of scholars that started logical positivism. Didn’t agree w metaphysics
Logical positivism
Positivism refers to assumption that scientific knowledge is true knowledge
Logical refers to preoccupation w language and meaning.
Manifesto
- Truth divided into emperical and logical
- Empirical make claims about world and verified through observation/experiment
- Logical are based on deductive logic and influenced by linguistic conventions
- Statements that don’t fall in either are meaningless
Verificationism
Only meaningful if verified as true or false. Demarcation criterion of science. Deductive doesn’t generate new knowledge
Problems w verificationism
Logically impossible: Induction can’t be verified bc you’d need infinity of observation (all swans are white)
Non-observable variables: Can’t be directly perceived. only solved if expressed in quantity
Changes in verifiability: Through new methods, things become observable, or mistakes, verified things change.
Sense data
Experiences gained through perception, LP assumed these are neutral so serve as foundation for science. Verification is comparing sense data to observation sentences