clarified input and output: support markup blocks via Bg/En;
clarified datatype tree vs. tree_ops: reconstruct nested markup blocks via make_tree;
clarified tree_ops_ord: ignore markup blocks, proceed like dict_ord;
(* Title: HOL/Library/Sum_of_Squares.thy
Author: Amine Chaieb, University of Cambridge
Author: Philipp Meyer, TU Muenchen
*)
section \<open>A decision procedure for universal multivariate real arithmetic
with addition, multiplication and ordering using semidefinite programming\<close>
theory Sum_of_Squares
imports Complex_Main
begin
ML_file \<open>Sum_of_Squares/positivstellensatz.ML\<close>
ML_file \<open>Sum_of_Squares/positivstellensatz_tools.ML\<close>
ML_file \<open>Sum_of_Squares/sum_of_squares.ML\<close>
ML_file \<open>Sum_of_Squares/sos_wrapper.ML\<close>
end