isabelle/valid/amc12b_2021_p21.thy (13 lines of code) (raw):
(*
Authors: Wenda Li
*)
theory amc12b_2021_p21
imports Complex_Main "HOL-Computational_Algebra.Computational_Algebra"
begin
theorem amc12b_2021_p21:
"2 \<le> (\<Sum> k \<in> {x ::real. 0 < x \<and> x powr (2 powr (sqrt 2))
= (sqrt 2) powr (2 powr x)}. k) \<and>
(\<Sum> k \<in> {x :: real. 0 < x \<and> x powr (2 powr (sqrt 2))
= (sqrt 2)powr (2 powr x)}. k) < 6"
sorry
end