diff --git a/Algoritmi_2/Teoria/Union.pdf b/Algoritmi_2/Teoria/Union.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..fd4e7afd3abc4edb48cf8688bec4ffb4de711af5
Binary files /dev/null and b/Algoritmi_2/Teoria/Union.pdf differ
diff --git a/Algoritmi_2/Teoria/Union.xopp b/Algoritmi_2/Teoria/Union.xopp
new file mode 100644
index 0000000000000000000000000000000000000000..cb74b323f16c889cc7cea7a391c706b22bfe7fb4
Binary files /dev/null and b/Algoritmi_2/Teoria/Union.xopp differ
diff --git a/Algoritmi_2/Teoria/Union_Cluster.xopp b/Algoritmi_2/Teoria/Union_Cluster.xopp
deleted file mode 100644
index 482dcd023cfa4d0390da537db603f58cdddc1970..0000000000000000000000000000000000000000
Binary files a/Algoritmi_2/Teoria/Union_Cluster.xopp and /dev/null differ