diff --git a/.DS_Store b/.DS_Store
index 162537a..8bead11 100644
Binary files a/.DS_Store and b/.DS_Store differ
diff --git a/docs/algebra.pdf b/docs/algebra.pdf
index 01d5bf7..8c7a5b9 100644
Binary files a/docs/algebra.pdf and b/docs/algebra.pdf differ
diff --git a/docs/algebra_solution.pdf b/docs/algebra_solution.pdf
index 760c950..42cd287 100644
Binary files a/docs/algebra_solution.pdf and b/docs/algebra_solution.pdf differ
diff --git a/docs/notes.html b/docs/notes.html
index 5ac6107..99a962c 100644
--- a/docs/notes.html
+++ b/docs/notes.html
@@ -53,7 +53,7 @@ <h2>Abstract Algebra Toolbox</h2>
           <p>The unique part is I try to summarize all-over-the-place abstract algebra concepts into various tools and problem-solving techniques, providing more insights in what these concepts can be used for. </p>
           <p><e>Copyright Notice:</e> Sharing for profit or any other purpose than free academic discussions is prohibited. Do not share without referencing this website and me. It is unethical to take my work as your own. The files below may contain many errors since there are only few editions. If you have any suggestions for edit, feel free to contact me. </p>
           <p><a href="algebra.pdf"> Algebra Toolbox [Updated until Tool 20]</a></p>
-          <p><a href="algebra_solution.pdf">Algebra Toolbox Solution [Updated until Tool 14]</a></p>
+          <p><a href="algebra_solution.pdf">Algebra Toolbox Solution [Updated until Tool 20]</a></p>
         </div>
         <div class="article" id="reading">
           <h2>Reading Notes</h2>
@@ -139,7 +139,7 @@ <h2>Contact</h2>
         <li class="active"><a href="notes.html">About Us</a></li>
         <li><a href="contact.html">Contacts</a></li>
       </ul> -->
-      <p class="lf"><e>Last Updated:</e> July 1, 2023</br></p>
+      <p class="lf"><e>Last Updated:</e> July 5, 2023</br></p>
       <div class="clr"></div>
     </div>
   </div>
diff --git a/docs/projects.html b/docs/projects.html
index b25efe7..4df6d02 100644
--- a/docs/projects.html
+++ b/docs/projects.html
@@ -38,6 +38,7 @@ <h2>About This Page</h2>
         <div class="article"  id="AI1min">
           <h2>AI 1 Minute</h2>
           <p>With my partner Eva Xu, we are currently doing an 1-minute summarization of what happend in the AI world everyday. See our videos below, and we hope you enjoy them!</p>
+          <p><a href="https://www.youtube.com/watch?v=K7bVjQ-s07k">July 4th, 2023</a></p>
           <p><a href="https://youtu.be/GWm1ahxZjC0">July 3rd, 2023</a></p>
           <p><a href="https://youtu.be/1gKaQA9iLhw">July 2nd, 2023</a></p>
           <p><a href="https://www.youtube.com/watch?v=-OB3eAZmNyw">July 1st, 2023</a></p>
@@ -115,7 +116,7 @@ <h2>Contact</h2>
   </div> -->
   <div class="footer">
     <div class="footer_resize">
-      <p class="lf"><e>Last Updated:</e> July 4th, 2023</p>
+      <p class="lf"><e>Last Updated:</e> July 5th, 2023</p>
       <!-- <ul class="fmenu">
         <li><a href="index.html">Home</a></li>
         <li class="active"><a href="projects.html">Support</a></li>