Add prefix ca for Clifford Algebras

templates/texdef.tree

@@ -1,5 +1,6 @@
 \import{macros}
-\tag{hopf}
+% clifford hopf spin
+\tag{}
 
 % definition theorem lemma construction observation
 % convention corollary axiom example exercise proof

trees/ca-0001.tree

@@ -0,0 +1,45 @@
+\title{Notes on Clifford Algebras}
+
+\import{macros}
+
+\tag{notes}
+\tag{math}
+\tag{clifford}
+
+\author{utensil}
+
+\date{2024-05-09}
+
+\p{The primary interest in this note series is to check various definitions of Clifford algebra operations, and related discussions.}
+
+\p{For now, check out [[spin-0001]].}
+
+% definition theorem lemma construction observation
+% convention corollary axiom example exercise proof
+% remark
+
+\scope{
+  \put\transclude/title{Scattered notes}
+  \query{
+    \query/and{
+      \query/tag{clifford}
+      \query/not{
+        \query/tag{notes}
+      }
+      \query/or{
+        \query/taxon{definition}
+        \query/taxon{theorem}
+        \query/taxon{lemma}
+        \query/taxon{construction}
+        \query/taxon{observation}
+        \query/taxon{convention}
+        \query/taxon{corollary}
+        \query/taxon{axiom}
+        \query/taxon{example}
+        \query/taxon{exercise}
+        \query/taxon{proof}
+        \query/taxon{remark}
+      }
+    }
+  }
+}