Изменения

* [http://ru.wikipedia.org/wiki/%D0%9E%D1%82%D0%BD%D0%BE%D1%88%D0%B5%D0%BD%D0%B8%D0%B5_%D1%8D%D0%BA%D0%B2%D0%B8%D0%B2%D0%B0%D0%BB%D0%B5%D0%BD%D1%82%D0%BD%D0%BE%D1%81%D1%82%D0%B8 Wikipedia | Отношение эквивалентности]

* [http://ru.wikipedia.org/wiki/%D0%9E%D1%82%D0%BD%D0%BE%D1%88%D0%B5%D0%BD%D0%B8%D0%B5_%D1%82%D0%BE%D0%BB%D0%B5%D1%80%D0%B0%D0%BD%D1%82%D0%BD%D0%BE%D1%81%D1%82%D0%B8 Wikipedia | Отношение толерантности]