Quote:
Originally Posted by Bladesman87
This sounds like a presup kind of argument to me. What does it mean for something to be self-justifying?
A
transcendental is a true belief that requires no justification. Logic is one such transcendental.
As a silly example:
Skeptic: I don't believe in the validity of logic. Prove to me that logic is valid. Give me a convincing argument that logic is indeed valid.
Presupper: In order for me to prove to you that logic is valid would
require that I
use logic. Proving
anything entails the validity of logic. The "proof" (so to speak) that logic is valid, is that any attempt to
disprove logic would
require logic to construct the argument. Any argument "proving" the validity of logic would be viciously circular.
Hence, logic is self-justifying.