Moved code in .is_isomorphic

sagemath · Feb 2, 2024 · a999a06 · a999a06
1 parent 2de9c56
commit a999a06
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/src/sage/algebras/quatalg/quaternion_algebra.py b/src/sage/algebras/quatalg/quaternion_algebra.py
@@ -1323,10 +1323,10 @@ def is_isomorphic(self, A) -> bool:
         if F != A.base_ring():
             raise ValueError("both quaternion algebras must be defined over the same base ring")
 
-        try:
-            if is_RationalField(F):
-                return self.ramified_places(inf=False) == A.ramified_places(inf=False)
+        if is_RationalField(F):
+            return self.ramified_places(inf=False) == A.ramified_places(inf=False)
 
+        try:
             ram_self = self.ramified_places(inf=True)
             ram_A = A.ramified_places(inf=True)
             return set(ram_self[0]) == set(ram_A[0]) and ram_self[1] == ram_A[1]