About Graph Unions and Intersections

[1] Grzegorz Bancerek, Czesław Byliński, Adam Grabowski, Artur Korniłowicz, Roman Matuszewski, Adam Naumowicz, and Karol Pąk. The role of the Mizar Mathematical Library for interactive proof development in Mizar. Journal of Automated Reasoning, 61(1):9–32, 2018. doi:10.1007/s10817-017-9440-6.10.1007/s10817-017-9440-6604425130069070Search in Google Scholar

[2] John Adrian Bondy and U. S. R. Murty. Graph Theory. Graduate Texts in Mathematics, 244. Springer, New York, 2008. ISBN 978-1-84628-969-9.Search in Google Scholar

[3] Czesław Byliński. Partial functions. Formalized Mathematics, 1(2):357–367, 1990.Search in Google Scholar

[4] Reinhard Diestel. Graph theory. Graduate Texts in Mathematics; 173. Springer, New York, 2nd edition, 2000. ISBN 0-387-98976-5; 0-387-98976-5.Search in Google Scholar

[5] Adam Grabowski, Artur Korniłowicz, and Adam Naumowicz. Four decades of Mizar. Journal of Automated Reasoning, 55(3):191–198, 2015. doi:10.1007/s10817-015-9345-1.10.1007/s10817-015-9345-1Search in Google Scholar

[6] Sebastian Koch. About graph complements. Formalized Mathematics, 28(1):41–63, 2020. doi:10.2478/forma-2020-0004.10.2478/forma-2020-0004Search in Google Scholar

[7] Gilbert Lee and Piotr Rudnicki. Alternative graph structures. Formalized Mathematics, 13(2):235–252, 2005.Search in Google Scholar

[8] Kenneth H. Rosen, editor. Handbook of discrete and combinatorial mathematics. Discrete mathematics and its applications. CRC Press, Boca Raton, second edition, 2018. ISBN 978-1-58488-780-5.Search in Google Scholar

[9] Klaus Wagner. Graphentheorie. B.I-Hochschultaschenbücher; 248. Bibliograph. Inst., Mannheim, 1970. ISBN 3-411-00248-4.Search in Google Scholar

[10] Robin James Wilson. Introduction to Graph Theory. Oliver & Boyd, Edinburgh, 1972. ISBN 0-05-002534-1.Search in Google Scholar