RE: Post your favorite proof
April 18, 2022 at 5:35 pm
(This post was last modified: April 18, 2022 at 5:37 pm by R00tKiT.)
Knock-down argument/proof against universal skepticism:
U: Universal skepticism: For any assertion P, we don't know if P is true or false.
Proof: The assertion U: "For any assertion P, we don't know if P is true or false" is either true or false. If it's true, we know at least that one assertion is true (U itself) therefore it's false. QED.
U: Universal skepticism: For any assertion P, we don't know if P is true or false.
Proof: The assertion U: "For any assertion P, we don't know if P is true or false" is either true or false. If it's true, we know at least that one assertion is true (U itself) therefore it's false. QED.
