Obviously, in the Pythagorean School's proof that √ 2 is not a rational number, the so-called √ 2 = P / Q (P, Q coprime) is false, which means that "P, Q coprime" is false, and vice versa.
Obviously, in Pythagorean school's proof that √2 is not a rational number, the so-called √2=p/q(p, q prime) is false, which means that "p, q prime" is false, and vice versa.