Re: [math-fun] Question about graphs

mcintosh@servidor.unam.mx Is that so obvious? Anyway, as to the converse --- think of a zillion nodes, all connected in pairs with no other connections.

Yikes, now nothing's obvious: think of a single node, connected to itself via infinitely many arcs. Now attach two of these to the arms of a "Y" to get an untraceable graph with two odd nodes...