A few more maths symbols (closes issue #93).

latexcodec/table.txt

@@ -310,9 +310,6 @@ A-	LATIN SMALL LETTER S WITH COMMA BELOW	\textcommabelow s
 A-	LATIN CAPITAL LETTER T WITH COMMA BELOW	\textcommabelow T
 A-	LATIN SMALL LETTER T WITH COMMA BELOW	\textcommabelow t
 M-	SCRIPT SMALL L	\ell
-M-	PARTIAL DIFFERENTIAL	\partial
-M-	N-ARY PRODUCT	\prod
-M-	N-ARY SUMMATION	\sum
 M-	SQUARE ROOT	\surd
 M-	INFINITY	\infty
 M-	INTEGRAL	\int
@@ -328,6 +325,31 @@ M-	ALMOST EQUAL TO	\approx
 M-	NOT EQUAL TO	\neq
 M-	LESS-THAN OR EQUAL TO	\leq
 M-	GREATER-THAN OR EQUAL TO	\geq
+M-	FOR ALL	\forall
+M-	COMPLEMENT	\complement
+M-	PARTIAL DIFFERENTIAL	\partial
+M-	THERE EXISTS	\exists
+M-	THERE DOES NOT EXIST	\nexists
+M-	EMPTY SET	\emptyset
+M-	NABLA	\nabla
+M-	ELEMENT OF	\in
+M-	NOT AN ELEMENT OF	\notin
+M-	CONTAINS AS MEMBER	\ni
+M-	DOES NOT CONTAIN AS MEMBER	\notni
+M-	END OF PROOF	\blacksquare
+M-	N-ARY PRODUCT	\prod
+M-	N-ARY COPRODUCT	\coprod
+M-	N-ARY SUMMATION	\sum
+M-	SUBSET OF	\subset
+M-	SUPERSET OF	\supset
+M-	NOT A SUBSET OF	\not\subset
+M-	NOT A SUPERSET OF	\not\supset
+M-	SUBSET OF OR EQUAL TO	\subseteq
+M-	SUPERSET OF OR EQUAL TO	\supseteq
+M-	NEITHER A SUBSET OF NOR EQUAL TO	\nsubseteq
+M-	NEITHER A SUPERSET OF NOR EQUAL TO	\nsupseteq
+M-	SUBSET OF WITH NOT EQUAL TO	\subsetneq
+M-	SUPERSET OF WITH NOT EQUAL TO	\supsetneq
 T-	MODIFIER LETTER CIRCUMFLEX ACCENT	\^{}
 T-	CARON	\v{}
 T-	BREVE	\u{}