diff --git a/docs/implementations.rst b/docs/implementations.rst
index df996c17f..20e6522a8 100644
--- a/docs/implementations.rst
+++ b/docs/implementations.rst
@@ -51,7 +51,7 @@ All network implementations are located in `mockturtle/networks/`:
 +--------------------------------+--------+--------+--------+--------+---------+--------+--------------+--------+
 | ``create_and``                 | ✓      | ✓      | ✓      | ✓      | ✓       | ✓      | ✓            | ✓      |
 +--------------------------------+--------+--------+--------+--------+---------+--------+--------------+--------+
-| ``create_nand``                | ✓      | ✓      | ✓      | ✓      |         | ✓      | ✓            | ✓      |
+| ``create_nand``                | ✓      | ✓      | ✓      | ✓      | ✓       | ✓      | ✓            | ✓      |
 +--------------------------------+--------+--------+--------+--------+---------+--------+--------------+--------+
 | ``create_or``                  | ✓      | ✓      | ✓      | ✓      | ✓       | ✓      | ✓            | ✓      |
 +--------------------------------+--------+--------+--------+--------+---------+--------+--------------+--------+
@@ -67,7 +67,7 @@ All network implementations are located in `mockturtle/networks/`:
 +--------------------------------+--------+--------+--------+--------+---------+--------+--------------+--------+
 | ``create_xor``                 | ✓      | ✓      | ✓      | ✓      | ✓       | ✓      | ✓            | ✓      |
 +--------------------------------+--------+--------+--------+--------+---------+--------+--------------+--------+
-| ``create_xnor``                | ✓      |        | ✓      | ✓      |         | ✓      | ✓            | ✓      |
+| ``create_xnor``                | ✓      |        | ✓      | ✓      |         | ✓      | ✓            |        |
 +--------------------------------+--------+--------+--------+--------+---------+--------+--------------+--------+
 |                                | *Create ternary functions*                                                   |
 +--------------------------------+--------+--------+--------+--------+---------+--------+--------------+--------+
@@ -127,9 +127,9 @@ All network implementations are located in `mockturtle/networks/`:
 +--------------------------------+--------+--------+--------+--------+---------+--------+--------------+--------+
 | ``fanout_size``                | ✓      | ✓      | ✓      | ✓      | ✓       | ✓      | ✓            | ✓      |
 +--------------------------------+--------+--------+--------+--------+---------+--------+--------------+--------+
-| ``incr_fanout_size``           | ✓      | ✓      | ✓      | ✓      |         |        | ✓            | ✓      |
+| ``incr_fanout_size``           | ✓      | ✓      | ✓      | ✓      | ✓       |        | ✓            | ✓      |
 +--------------------------------+--------+--------+--------+--------+---------+--------+--------------+--------+
-| ``decr_fanout_size``           | ✓      | ✓      | ✓      | ✓      |         |        | ✓            | ✓      |
+| ``decr_fanout_size``           | ✓      | ✓      | ✓      | ✓      | ✓       |        | ✓            | ✓      |
 +--------------------------------+--------+--------+--------+--------+---------+--------+--------------+--------+
 | ``depth`` (*)                  |        |        |        |        |         |        | ✓            |        |
 +--------------------------------+--------+--------+--------+--------+---------+--------+--------------+--------+
@@ -153,7 +153,7 @@ All network implementations are located in `mockturtle/networks/`:
 +--------------------------------+--------+--------+--------+--------+---------+--------+--------------+--------+
 | ``is_nary_xor``                | ✓      | ✓      | ✓      | ✓      |         |        | ✓            | ✓      |
 +--------------------------------+--------+--------+--------+--------+---------+--------+--------------+--------+
-| ``is_function``                |        |        |        |        | ✓       | ✓      | ✓            |        |
+| ``is_function``                |        |        |        |        | ✓       | ✓      |              |        |
 +--------------------------------+--------+--------+--------+--------+---------+--------+--------------+--------+
 |                                | *Functional properties*                                                      |
 +--------------------------------+--------+--------+--------+--------+---------+--------+--------------+--------+