adding code attribute to definition of equality of finite sets for executability of equality of finite sets
header {* Main HOL *}
theory Main
imports Plain Record Predicate_Compile Nitpick SMT
begin
text {*
Classical Higher-order Logic -- only ``Main'', excluding real and
complex numbers etc.
*}
text {* See further \cite{Nipkow-et-al:2002:tutorial} *}
end