diff --git a/Function.js b/Function.js
deleted file mode 100644
index e92fe6b..0000000
--- a/Function.js
+++ /dev/null
@@ -1,68 +0,0 @@
-/**********************************************************************
-* 
-*
-*
-**********************************************/  /* c8 ignore next 2 */
-((typeof define)[0]=='u'?function(f){module.exports=f(require)}:define)
-(function(require){ var module={} // make module AMD/node compatible...
-/*********************************************************************/
-
-var object = require('ig-object')
-
-
-/*********************************************************************/
-
-var FunctionProtoMixin =
-module.FunctionProtoMixin =
-object.Mixin('FunctionProtoMixin', 'soft', {
-	// NOTE: this is more usefull to define new functions for later reuse
-	// 		rather than one-time "modding", for example, calling this on 
-	// 		instance methods will lose context:
-	// 			;[1,3,2]
-	// 				.sort
-	// 				.post(function(res){
-	// 					return res.pop() })
-	//
-	// 		a better way to do this:
-	// 			;[1,3,2]
-	// 				.sort()
-	// 				.pop()
-	//
-	// 		and a better way to use this is:
-	// 			Array.prototype.greatest = 
-	// 				Array.prototype
-	// 					.sort
-	// 					.post(function(res){ 
-	// 						return res.pop() })
-	//
-	// XXX this more complicated and less clear than:
-	// 			Array.prototype.greatest = 
-	// 				function(){
-	// 					return this
-	// 						.sort()
-	// 						.pop() }
-	// 		...are there cases when this is actually needed???
-	// XXX add doc...
-	before: function(func){
-		var that = this
-		return function(){
-			var res = func.call(this, ...arguments) 
-			res = res === undefined ?
-				that
-				: res
-			return res.call(this, ...arguments) }},
-	after: function(func){
-		var that = this
-		return function(){
-			return func.call(this, 
-				that.call(this, 
-					...arguments), 
-				...arguments) }},
-})
-
-FunctionProtoMixin(Function.prototype)
-
-
-
-/**********************************************************************
-* vim:set ts=4 sw=4 :                               */ return module })
diff --git a/README.md b/README.md
index 55f49d2..48dc7b3 100644
--- a/README.md
+++ b/README.md
@@ -13,9 +13,6 @@ A library of JavaScript type extensions, types and type utilities.
     - [`Object.matchPartial(..)`](#objectmatchpartial)
     - [`<object>.run(..)`](#objectrun)
     - [`Object.sort(..)`](#objectsort)
-  - [`Function`](#function)
-    - [`<function>.before(..)` (EXPERIMENTAL)](#functionbefore-experimental)
-    - [`<function>.after(..)` (EXPERIMENTAL)](#functionafter-experimental)
   - [`Array`](#array)
     - [`<array>.first(..)` / `<array>.last(..)`](#arrayfirst--arraylast)
     - [`<array>.rol(..)`](#arrayrol)
@@ -327,34 +324,6 @@ Object.keys(Object.sort(o, ['x', 'a', '100']))
 ```
 
 
-## `Function`
-
-```javascript
-require('ig-types/Function')
-```
-
-### `<function>.before(..)` (EXPERIMENTAL)
-
-```bnf
-<function>.before(<func>)
-  -> <function>
-
-<func>(...args)
-    -> <res>
-```
-
-### `<function>.after(..)` (EXPERIMENTAL)
-
-```bnf
-<function>.after(<func>)
-  -> <function>
-
-<func>(<res>, ...args)
-    -> <res>
-```
-
-
-
 ## `Array`
 
 ```javascript
diff --git a/main.js b/main.js
index 0fbb32f..a57dd3e 100644
--- a/main.js
+++ b/main.js
@@ -9,7 +9,6 @@
 
 // Extend built-in types...
 require('./Object')
-//require('./Function')
 require('./Array')
 require('./Set')
 require('./Map')