Editing Reflexive relation (section)

== References ==
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* {{cite book |first1=Alan |last1=Hausman |first2=Howard |last2=Kahane |first3=Paul |last3=Tidman |year=2013 |title=Logic and Philosophy – A Modern Introduction |publisher=Wadsworth |isbn=978-1-133-05000-1 }}
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* {{cite book |first1=Bertrand |last1=Russell |author1-link=Bertrand Russell |year=1920 |title=Introduction to Mathematical Philosophy |location=London |publisher=George Allen & Unwin, Ltd. |edition=2nd |url=https://people.umass.edu/klement/imp/imp-ebk.pdf | isbn= }}  (Online corrected edition, Feb 2010)
* {{citation |first1=Gunther |last1=Schmidt |year=2010 |title=Relational Mathematics |publisher=Cambridge University Press |isbn=978-0-521-76268-7 }}
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