set intersection and union now named inter and union; closer connection between set and lattice operations; factored out complete lattice
header {* Plain HOL *}
theory Plain
imports Datatype FunDef Record Extraction Divides
begin
text {*
Plain bootstrap of fundamental HOL tools and packages; does not
include @{text Hilbert_Choice}.
*}
ML {* path_add "~~/src/HOL/Library" *}
end