Finished first exercise of assignment 3 and did some refactoring on numbering etc

assignments/week1/main.tex

@@ -1,7 +1,8 @@
 \documentclass[../main_text.tex]{subfiles}
 \begin{document}
+\setcounter{exercise}{0}
 
-\section{Assignment 1}
+\part{Assignment 1}
 
 \exercise*[0.3.6]
 % For some reason I can't put a fitted tcbox here and I really don't like it
@@ -132,7 +133,7 @@ So each set $A_i := \{i\}  \forall  i \in \N$. Since $\N$ is countably infinite,
 Each set is definitely finite, because they all contain just one element.
 Finally, the union of the collection of sets is equal to $\N$, which is not a finite set.
 
-\exercise[6]
+\exercise*
 \begin{tcolorbox}
     \begin{enumerate}[label=\emph{\alph*)}, wide]
         \item Compute $f(4/15)$. Find $q$ such that $f(q) = 108$.