https://drorbn.net/api.php?action=feedcontributions&feedformat=atom&user=DalvitDrorbn - User contributions [en]2026-04-23T09:19:10ZUser contributionsMediaWiki 1.39.6https://drorbn.net/index.php?title=Notes_for_BBS/Martins-150501-114927.jpg&diff=14632Notes for BBS/Martins-150501-114927.jpg2015-05-08T17:00:03Z<p>Dalvit: Created page with "Bottom left correct relation is <math>(X,e)(Y,f)(X,e)^{-1}</math> (second axiom of crossed modules). Fourth red relation on the right should be <math>D=\partial(d)A^{-1}GA</m..."</p>
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<div>Bottom left correct relation is <math>(X,e)(Y,f)(X,e)^{-1}</math> (second axiom of crossed modules).<br />
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Fourth red relation on the right should be <math>D=\partial(d)A^{-1}GA</math></div>Dalvit