Writing Assignment 07

Math 110A, Spring 2024

Directions.

  1. Get the template for this assignment (or use your own). Here’s how to do it:
  2. Use $\LaTeX$ to type up your proofs of the Propositions to Prove listed below. Make sure to use complete sentences and appropriate punctuation. Also, make sure to edit for typos.
  3. Click on the “Download PDF” button (to the right of the “Recompile” button). Save the file somewhere you can easily find it. Submit the pdf in Canvas.
  4. Let me know if you have any questions!

Remember, if you have trouble finding the command for a math symbol you want to use, try googling it, email me, or try looking in this Short Math Guide for $\LaTeX{}$.

Propositions to Prove.

  1. Let $p$ be a prime. If $G$ is a group of order $p$, then $G\cong \mathbb{Z}_p$. (Theorem 5.21.)

  2. If $m$ and $n$ are relatively prime, then $\mathbb{Z}_m \times \mathbb{Z}_n$ is cyclic. (Only one direction of Theorem 6.15.)

  3. Let $G$ be a group, and let $H\trianglelefteq G$. If $G$ is abelian, then $G/H$ is abelian. (Theorem 6.40)