Hi there. I'm working on this induction problem and simply cannot figure out how to make it work. Any advice would be appreciated.


( Read more... )

I have not posted in a while, but I have some more questions ( Read more... )

Hey there, fellow math lovers ( Read more... )

On the bus ride home last night, I started reading Algebras, Lattices, Varieties by McKenzie, McNulty, and Taylor. I felt like I was flying through the first chapter until they threw in the line that all monoids are extensions of semigroups but not all semigroups can be extended into monoids.
( definitions )