Homework Assignment 3 - Due Friday, October 2

profedgar 26 Sep 2009 23:35

Section 3: 2, 3, 4, 8, 21, 26, 30

Section 4: 41

Section 3: 11, 12, 17, 27

and Prove: The inverse property is a structural property.

in other words, Let $(S,*)\cong (T,\star)$ be isomorphic binary structures via the bijection $\varphi:S\to T$. If $a\in S$ has an inverse, $a'$, then $\varphi(a)$ also has an inverse and $\varphi(a)'=\varphi(a')$ as expected.