div class=ts-pagebuttonPage 1button div class=ts-image a href=https:reader039vdocumentinreader039viewer20220226005b4479697f8b9ae0668bbf4dhtml5page1jpg target=_blank amp-img class=ts-thumb alt=Page 1: 5 Definition 531 Symmetry vertical mirror reflections understanding of groups than needed in Section 52 because now the groups are infinite src=https:reader039vdocumentinreader039viewer20220226005b4479697f8b9ae0668bbf4dhtml5thumbnails1jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 2button div class=ts-image a href=https:reader039vdocumentinreader039viewer20220226005b4479697f8b9ae0668bbf4dhtml5page2jpg target=_blank amp-img class=ts-thumb alt=Page 2: 5 Definition 531 Symmetry vertical mirror reflections understanding of groups than needed in Section 52 because now the groups are infinite src=https:reader039vdocumentinreader039viewer20220226005b4479697f8b9ae0668bbf4dhtml5thumbnails2jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 3button div class=ts-image a href=https:reader039vdocumentinreader039viewer20220226005b4479697f8b9ae0668bbf4dhtml5page3jpg target=_blank amp-img class=ts-thumb alt=Page 3: 5 Definition 531 Symmetry vertical mirror reflections understanding of groups than needed in Section 52 because now the groups are infinite src=https:reader039vdocumentinreader039viewer20220226005b4479697f8b9ae0668bbf4dhtml5thumbnails3jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 4button div class=ts-image a href=https:reader039vdocumentinreader039viewer20220226005b4479697f8b9ae0668bbf4dhtml5page4jpg target=_blank amp-img class=ts-thumb alt=Page 4: 5 Definition 531 Symmetry vertical mirror reflections understanding of groups than needed in Section 52 because now the groups are infinite src=https:reader039vdocumentinreader039viewer20220226005b4479697f8b9ae0668bbf4dhtml5thumbnails4jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 5button div class=ts-image a href=https:reader039vdocumentinreader039viewer20220226005b4479697f8b9ae0668bbf4dhtml5page5jpg target=_blank amp-img class=ts-thumb alt=Page 5: 5 Definition 531 Symmetry vertical mirror reflections understanding of groups than needed in Section 52 because now the groups are infinite src=https:reader039vdocumentinreader039viewer20220226005b4479697f8b9ae0668bbf4dhtml5thumbnails5jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 6button div class=ts-image a href=https:reader039vdocumentinreader039viewer20220226005b4479697f8b9ae0668bbf4dhtml5page6jpg target=_blank amp-img class=ts-thumb alt=Page 6: 5 Definition 531 Symmetry vertical mirror reflections understanding of groups than needed in Section 52 because now the groups are infinite src=https:reader039vdocumentinreader039viewer20220226005b4479697f8b9ae0668bbf4dhtml5thumbnails6jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 7button div class=ts-image a href=https:reader039vdocumentinreader039viewer20220226005b4479697f8b9ae0668bbf4dhtml5page7jpg target=_blank amp-img class=ts-thumb alt=Page 7: 5 Definition 531 Symmetry vertical mirror reflections understanding of groups than needed in Section 52 because now the groups are infinite src=https:reader039vdocumentinreader039viewer20220226005b4479697f8b9ae0668bbf4dhtml5thumbnails7jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 8button div class=ts-image a href=https:reader039vdocumentinreader039viewer20220226005b4479697f8b9ae0668bbf4dhtml5page8jpg target=_blank amp-img class=ts-thumb alt=Page 8: 5 Definition 531 Symmetry vertical mirror reflections understanding of groups than needed in Section 52 because now the groups are infinite src=https:reader039vdocumentinreader039viewer20220226005b4479697f8b9ae0668bbf4dhtml5thumbnails8jpg width=142 height=106 layout=responsive amp-imga divdiv