例文
- All these subgroups are mutually conjugate in SO ( 4 ).
- Any errors of flatness are removed by this scraping, since the only stable, mutually conjugate surface shape is a plane.
- This implies that under the group O ( 4 ) of " all " isometries with fixed point O the subgroups S 3 L and S 3 R are mutually conjugate and so are not normal subgroups of O ( 4 ).