短語詞組短語lattice -monoid 格半群lattice ordered monoid l 幺半群Lattice -ordered monoid 格半群dedekind lattice -ordered monoid 戴德金格序幺半群complete lattice -ordered monoid 備格序幺半群conical lattice -ordered idempotent monoid 錐形格序冪等元么半群 返回 lattice monoid