isabelle/valid/aimeI_2000_p7.thy (19 lines of code) (raw):

(* Authors: Wenda Li *) theory aimeI_2000_p7 imports Complex_Main "HOL-Computational_Algebra.Computational_Algebra" "HOL-Number_Theory.Number_Theory" begin theorem aimeI_2000_p7: fixes x y z :: real and m :: rat assumes "0 < x \<and> 0 < y \<and> 0 < z" and "x * y * z = 1" and "x + 1 / z = 5" and "y + 1 / x = 29" and "z + 1 / y = m" and "0 < m" shows "let (x,y) = quotient_of m in x + y = 5" sorry end