Update src/sage/rings/polynomial/multi_polynomial_sequence.py

Co-authored-by: Travis Scrimshaw <[email protected]>

Author: MercedesHaiech

src/sage/rings/polynomial/multi_polynomial_sequence.py

@@ -1271,7 +1271,7 @@ def is_groebner(self, singular=singular):
         forms a Groebner basis if and only if for every element `S` in
         `Syz(LM(I))`:
 
-        .. math::
+        .. MATH::
 
             S \star G = \sum_{i=0}^{m} h_i g_i \longrightarrow_G 0.