The January Philosophy Book of the Month 2019 is The Runaway Species. Discuss The Runaway Species now.
The February Philosophy Book of the Month is The Fourth Age by Byron Reese (Nominated by RJG.) Discuss The Fourth Age now.
- New Trial Member
- Posts: 2
- Joined: October 23rd, 2017, 5:45 am
The goal is to defend falsificationism (as formulated my Karl Popper) from this criticism:
Theories that contain existential statements, such as "some mammals lay eggs," are not falsifiable (because one cannot observe the whole universe in order to falsify the statement), but the one I mentioned above seems perfectly scientific.
I already tried saying this: "falsificationists need to bite the bullet and accept that a theory like that is unscientific, but also say that few, if not none of, theories are of that form anyway (the concept of electron specifies a location where it can be observed, and the theory of universal gravitation applies to all location and time)." But my professor said that there is a way to defend that does not involve biting the bullet.
- Posts: 5715
- Joined: June 15th, 2011, 5:53 pm
- Favorite Philosopher: Eratosthenes
- Location: UK
An individual statement that is falsifiable but not verifiable can easily be turned into a statement that is verifiable but not falsifiable by negating it. e.g. "all swans are white" is falsifiable but not verifiable. Its negation "some swans are not white" is the reverse. It's verifiable but not falsifiable.
In your case, the statement "some mammals lay eggs" is verifiable. Its negation is the statement "there are no mammals that lay eggs". That statement is falsifiable (by finding at least one egg-laying mammal).