Fix and/add typo
diff --git a/Doc/api/concrete.tex b/Doc/api/concrete.tex
index 97ef134..33b04d4 100644
--- a/Doc/api/concrete.tex
+++ b/Doc/api/concrete.tex
@@ -3080,9 +3080,9 @@
\cfunction{PyObject_IsTrue()}, \cfunction{PyObject_Print()}, and
\cfunction{PyObject_GetIter()})
or the abstract number protocol (including
-\cfunction{PyNumber_Add()}, \cfunction{PyNumber_Subtract()},
+\cfunction{PyNumber_And()}, \cfunction{PyNumber_Subtract()},
\cfunction{PyNumber_Or()}, \cfunction{PyNumber_Xor()},
-\cfunction{PyNumber_InPlaceAdd()}, \cfunction{PyNumber_InPlaceSubtract()},
+\cfunction{PyNumber_InPlaceAnd()}, \cfunction{PyNumber_InPlaceSubtract()},
\cfunction{PyNumber_InPlaceOr()}, and \cfunction{PyNumber_InPlaceXor()}).
\begin{ctypedesc}{PySetObject}