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About this article
Published Online: May 29, 2020
Page range: 23 - 39
Accepted: Dec 30, 2019
DOI: https://doi.org/10.2478/forma-2020-0003
Keywords
© 2020 Sebastian Koch, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License.
This article contains many auxiliary theorems which were missing in the Mizar Mathematical Library [2] to the best of the author’s knowledge. Most of them regard graph theory as formalized in the GLIB series (cf. [8]) and most of them are preliminaries needed in [7] or other forthcoming articles.