diff --git a/README.md b/README.md
index 2921e11..7519316 100644
--- a/README.md
+++ b/README.md
@@ -66,12 +66,14 @@ execute if std:out run return run function my_function
 ```
 
 # Functions
+> [!Note]
+> The functions under the `z_:` namespace are used internally by mcfstd and are not meant to be called directly unless you know what you are doing.
+
 <table>
 	<tr>
 		<th>Function</th>
 		<th>Arguments</th>
 		<th>Description</th>
-		<th>Example</th>
 	</tr>
 	<tr>
 		<th colspan="4">Variables</th>
@@ -81,7 +83,6 @@ execute if std:out run return run function my_function
 		<td rowspan="2"><code>var:set</code></td>
 		<td><code>k</code> Name of the variable (string)</td>
 		<td rowspan="2">Set the value of a variable</td>
-		<td rowspan="2"><code>function var:set { k: my_variable, v: 10 }</code></td>
 	</tr>
 	<tr>
 		<td><code>v</code> Value of the variable (int)</td>
@@ -91,14 +92,12 @@ execute if std:out run return run function my_function
 		<td><code>var:unset</code></td>
 		<td><code>k</code> Name of the variable (string)</td>
 		<td>Remove a varialbe</td>
-		<td><code>function var:unset { k: my_variable }</code></td>
 	</tr>
 	<!-- var:mv -->
 	<tr>
 		<td rowspan="2"><code>var:mv</code></td>
 		<td><code>k</code> Old variable name (string)</td>
 		<td rowspan="2">Rename a variable</td>
-		<td rowspan="2"><code>function var:mv { k: my_variable, v: my_renamed_variable }</code></td>
 	</tr>
 	<tr>
 		<td><code>v</code> New variable name (string)</td>
@@ -108,21 +107,18 @@ execute if std:out run return run function my_function
 		<td><code>var:inc</code></td>
 		<td><code>k</code> Name of the variable (string)</td>
 		<td>Increment the value of a variable</td>
-		<td><code>function var:inc { k: my_variable }</code></td>
 	</tr>
 	<!-- var:dec -->
 	<tr>
 		<td><code>var:dec</code></td>
 		<td><code>k</code> Name of the variable (string)</td>
 		<td>Decrement the value of a variable</td>
-		<td><code>function var:dec { k: my_variable }</code></td>
 	</tr>
 	<!-- var:put -->
 	<tr>
 		<td><code>var:put</code></td>
 		<td>-</td>
 		<td>Put the current value of A into this variable</td>
-		<td><code>function var:put { k: my_variable }</code></td>
 	</tr>
 	<tr>
 		<th colspan="4">Arithmetic</th>
@@ -132,50 +128,45 @@ execute if std:out run return run function my_function
 		<td rowspan="2"><code>math:add</code></td>
 		<td><code>k</code> Name of the variable (string)</td>
 		<td rowspan="2">Add a number to the current value of a variable and store the result in A</td>
-		<td rowspan="2"><code>function math:add { k: my_variable, v: 10 }</code></td>
 	</tr>
 	<tr>
-		<td><code>v</code> Number to add (string)</td>
+		<td><code>v</code> Number to add (int)</td>
 	</tr>
 	<!-- math:sub -->
 	<tr>
 		<td rowspan="2"><code>math:sub</code></td>
 		<td><code>k</code> Name of the variable (string)</td>
 		<td rowspan="2">Subtract a number to the current value of a variable and store the result in A</td>
-		<td rowspan="2"><code>function math:sub { k: my_variable, v: 10 }</code></td>
 	</tr>
 	<tr>
-		<td><code>v</code> Number to subtract (string)</td>
+		<td><code>v</code> Number to subtract (int)</td>
 	</tr>
 	<!-- math:mul -->
 	<tr>
 		<td rowspan="2"><code>math:mul</code></td>
 		<td><code>k</code> Name of the variable (string)</td>
 		<td rowspan="2">Multiply a number with the current value of a variable and store the result in A</td>
-		<td rowspan="2"><code>function math:mul { k: my_variable, v: 10 }</code></td>
 	</tr>
 	<tr>
-		<td><code>v</code> Number to multiply (string)</td>
+		<td><code>v</code> Number to multiply (int)</td>
 	</tr>
 	<!-- math:div -->
 	<tr>
 		<td rowspan="2"><code>math:div</code></td>
 		<td><code>k</code> Name of the variable (string)</td>
 		<td rowspan="2">Divide a number with the current value of a variable and store the result in A</td>
-		<td rowspan="2"><code>function math:div { k: my_variable, v: 10 }</code></td>
 	</tr>
 	<tr>
-		<td><code>v</code> Number to divide (string)</td>
+		<td><code>v</code> Number to divide (int)</td>
 	</tr>
 	<!-- math:mod -->
 	<tr>
 		<td rowspan="2"><code>math:mod</code></td>
 		<td><code>k</code> Name of the variable (string)</td>
 		<td rowspan="2">Modulo a number with the current value of a variable and store the result in A</td>
-		<td rowspan="2"><code>function math:mod { k: my_variable, v: 10 }</code></td>
 	</tr>
 	<tr>
-		<td><code>v</code> Number to modulo (string)</td>
+		<td><code>v</code> Number to modulo (int)</td>
 	</tr>
 	<tr>
 		<th colspan="4">Relation / Compare</th>
@@ -184,51 +175,46 @@ execute if std:out run return run function my_function
 	<tr>
 		<td rowspan="2"><code>comp:eq</code></td>
 		<td><code>a</code> Name of the first variable (string)</td>
-		<td rowspan="2">Check if <code>a = b</code> and store the result in <code>stdout</code></td>
-		<td rowspan="2"><code>function comp:eq { a: my_variable, b: my_other_variable }</code></td>
+		<td rowspan="2">Check if <code>a = b</code> and store the result in <a href="#the-standard-output">the standard output</a></td>
 	</tr>
 	<tr>
-		<td><code>v</code> Name of the second variable (string)</td>
+		<td><code>b</code> Name of the second variable (string)</td>
 	</tr>
 	<!-- comp:gt -->
 	<tr>
 		<td rowspan="2"><code>comp:gt</code></td>
 		<td><code>a</code> Name of the first variable (string)</td>
-		<td rowspan="2">Check if <code>a > b</code> and store the result in <code>stdout</code></td>
-		<td rowspan="2"><code>function comp:gt { a: my_variable, b: my_other_variable }</code></td>
+		<td rowspan="2">Check if <code>a > b</code> and store the result in <a href="#the-standard-output">the standard output</a></td>
 	</tr>
 	<tr>
-		<td><code>v</code> Name of the second variable (string)</td>
+		<td><code>b</code> Name of the second variable (string)</td>
 	</tr>
 	<!-- comp:gteq -->
 	<tr>
 		<td rowspan="2"><code>comp:gteq</code></td>
 		<td><code>a</code> Name of the first variable (string)</td>
-		<td rowspan="2">Check if <code>a >= b</code> and store the result in <code>stdout</code></td>
-		<td rowspan="2"><code>function comp:gteq { a: my_variable, b: my_other_variable }</code></td>
+		<td rowspan="2">Check if <code>a >= b</code> and store the result in <a href="#the-standard-output">the standard output</a></td>
 	</tr>
 	<tr>
-		<td><code>v</code> Name of the second variable (string)</td>
+		<td><code>b</code> Name of the second variable (string)</td>
 	</tr>
 	<!-- comp:lt -->
 	<tr>
 		<td rowspan="2"><code>comp:lt</code></td>
 		<td><code>a</code> Name of the first variable (string)</td>
-		<td rowspan="2">Check if <code>a < b</code> and store the result in <code>stdout</code></td>
-		<td rowspan="2"><code>function comp:lt { a: my_variable, b: my_other_variable }</code></td>
+		<td rowspan="2">Check if <code>a < b</code> and store the result in <a href="#the-standard-output">the standard output</a></td>
 	</tr>
 	<tr>
-		<td><code>v</code> Name of the second variable (string)</td>
+		<td><code>b</code> Name of the second variable (string)</td>
 	</tr>
 	<!-- comp:lteq -->
 	<tr>
 		<td rowspan="2"><code>comp:lteq</code></td>
 		<td><code>a</code> Name of the first variable (string)</td>
-		<td rowspan="2">Check if <code>a <= b</code> and store the resulteq in <code>stdout</code></td>
-		<td rowspan="2"><code>function comp:lteq { a: my_variable, b: my_other_variable }</code></td>
+		<td rowspan="2">Check if <code>a <= b</code> and store the resulteq in <a href="#the-standard-output">the standard output</a></td>
 	</tr>
 	<tr>
-		<td><code>v</code> Name of the second variable (string)</td>
+		<td><code>b</code> Name of the second variable (string)</td>
 	</tr>
 	<tr>
 		<th colspan="4">Built-in operations</th>
@@ -237,7 +223,6 @@ execute if std:out run return run function my_function
 	<tr>
 		<td><code>std:out</code></td>
 		<td>-</td>
-		<td>Will return true if the value of stdout is 0 (success)</td>
-		<td><code>execute if function std:out run function my_function</code></td>
+		<td>Will return nothing if the value of <a href="#the-standard-output">the standard output</a> is not <code>fail</code>. Else this function will also <code>fail</code></td>
 	</tr>
 </table>