diff --git a/build_info.json b/build_info.json
index c7f13d0..8274c45 100644
--- a/build_info.json
+++ b/build_info.json
@@ -1,8 +1,8 @@
 {
     "build_time": "",
     "source files": {
-        "version": "v2.2.2-8",
-        "commit": "5a7525ffa42840583a06447de29322f8cc77318f",
+        "version": "v2.2.2-10",
+        "commit": "8cc3232462da2584cdfaee9fb32c3ee6f345876c",
         "dirty": false
     },
     "pytex": {
@@ -114,9 +114,9 @@
         {
             "name": "mkessler-mathalias.sty",
             "source file": "mathalias.pysty",
-            "build time": "2021/10/24 08:36",
-            "source version": "v2.2.2-2",
-            "source commit hash": "0e520739a3ac07d81f5d9dba14a955a4b05d1851",
+            "build time": "2021/10/24 19:18",
+            "source version": "v2.2.2-10",
+            "source commit hash": "8cc3232462da2584cdfaee9fb32c3ee6f345876c",
             "pytex version": "v1.0.0-18",
             "pytex commit hash": "126d420b7a6ed2d4b2a42d534ab2e12344869643",
             "dirty": false
@@ -144,9 +144,9 @@
         {
             "name": "mkessler-mathop.sty",
             "source file": "mathop.pysty",
-            "build time": "2021/10/24 08:36",
-            "source version": "v2.2.2-2",
-            "source commit hash": "0e520739a3ac07d81f5d9dba14a955a4b05d1851",
+            "build time": "2021/10/24 19:18",
+            "source version": "v2.2.2-10",
+            "source commit hash": "8cc3232462da2584cdfaee9fb32c3ee6f345876c",
             "pytex version": "v1.0.0-18",
             "pytex commit hash": "126d420b7a6ed2d4b2a42d534ab2e12344869643",
             "dirty": false
diff --git a/math/mkessler-mathalias.sty b/math/mkessler-mathalias.sty
index 71d3e1d..1a05757 100644
--- a/math/mkessler-mathalias.sty
+++ b/math/mkessler-mathalias.sty
@@ -27,7 +27,7 @@
 % 
 % Build details:
 %   PyTeX version: v1.0.0-18 (commit 126d420)
-%   Source code version: v2.2.2-2 (commit 0e52073)
+%   Source code version: v2.2.2-10 (commit 8cc3232)
 % 
 % This LaTeX package is free software and distributed under the MIT License. You
 % may use it freely for your purposes. The latest version of the package can be
@@ -85,4 +85,5 @@
 \ifmkessler@mathalias@extended
     \expandafter\makealiasesforwith\expandafter\mathcal\expandafter{\expandafter c\expandafter}\expandafter{\mkessler@mathalias@all}
     \expandafter\makealiasesforwith\expandafter\mathfrak\expandafter{\expandafter f\expandafter}\expandafter{\mkessler@mathalias@all}
+    \expandafter\makealiasesforwith\expandafter\mathbb\expandafter{\expandafter b\expandafter}\expandafter{\mkessler@mathalias@all}
 \fi
diff --git a/math/mkessler-mathop.sty b/math/mkessler-mathop.sty
index 81ec843..2d2484d 100644
--- a/math/mkessler-mathop.sty
+++ b/math/mkessler-mathop.sty
@@ -27,7 +27,7 @@
 % 
 % Build details:
 %   PyTeX version: v1.0.0-18 (commit 126d420)
-%   Source code version: v2.2.2-2 (commit 0e52073)
+%   Source code version: v2.2.2-10 (commit 8cc3232)
 % 
 % This LaTeX package is free software and distributed under the MIT License. You
 % may use it freely for your purposes. The latest version of the package can be
@@ -168,6 +168,7 @@
 \DeclareSimpleMathOperator{pr}
 \def\twedge{\vee} % Semantically correct macros for wedge product
 \def\tsmash{\wedge} % Semantically correct macro for smash product
+\DeclareSimpleMathOperator{sing}
 
 %Category Theory
 \DeclareSimpleMathOperator{Ob}