make build process state protected to avoid copying in subclasses (e.g. for database connections);
(* Title: HOL/Algebra/Algebra.thy *)
theory Algebra
imports Sylow Chinese_Remainder Zassenhaus Galois_Connection Generated_Fields Free_Abelian_Groups
Divisibility Embedded_Algebras IntRing Sym_Groups Exact_Sequence Polynomials Algebraic_Closure
Left_Coset SimpleGroups SndIsomorphismGrp
begin
end