Re: New addition to the list of Relativity Critics/Skeptics

Antonio Leon
"New Elements of Euclidean Geometry" Revised 2023
"Apparent Relativity" Revised 2023
Both books available free at Academia.edu
 
He demonstrates Euclid's 5th postulate, something supposedly ridiculous to
claim, since many attempted to do this for over 2,000 years without
success.
 
The non-Euclidean geometries take as a pretext the alleged inability to
prove the 5th postulate to embark on their unproven claims.
 
Jeremiah Joseph Callahan already accomplished the same in his 1931 book,
"Euclid or Einstein: A Proof of the Parallel Theory and a Critique of
Metageometry"