diff --git a/BeefLibs/corlib/src/IComparable.bf b/BeefLibs/corlib/src/IComparable.bf
index b58f8ca0..2c21f4e3 100644
--- a/BeefLibs/corlib/src/IComparable.bf
+++ b/BeefLibs/corlib/src/IComparable.bf
@@ -43,6 +43,11 @@ namespace System
 		static Self operator+(Self lhs, Self rhs);
 	}
 
+	interface IOpSubtractable
+	{
+		static Self operator-(Self lhs, Self rhs);
+	}
+
 	interface IOpNegatable
 	{
 		static Self operator-(Self value);
diff --git a/BeefLibs/corlib/src/Int.bf b/BeefLibs/corlib/src/Int.bf
index ad11b7a0..cfd81d8e 100644
--- a/BeefLibs/corlib/src/Int.bf
+++ b/BeefLibs/corlib/src/Int.bf
@@ -2,7 +2,7 @@ using System;
 
 namespace System
 {
-	struct Int : int, IInteger, IHashable, IFormattable, IOpComparable, IIsNaN, IOpNegatable, IOpAddable
+	struct Int : int, IInteger, IHashable, IFormattable, IOpComparable, IIsNaN, IOpNegatable, IOpAddable, IOpSubtractable
     {
 		public enum ParseError
 		{
@@ -21,6 +21,11 @@ namespace System
 			return (SelfBase)lhs + (SelfBase)rhs;
 		}
 
+		public static Self operator-(Self lhs, Self rhs)
+		{
+			return (SelfBase)lhs - (SelfBase)rhs;
+		}
+
 		public static Self operator-(Self value)
 		{
 			return (SelfBase)value;
diff --git a/BeefLibs/corlib/src/Int16.bf b/BeefLibs/corlib/src/Int16.bf
index 379d00d6..988e923b 100644
--- a/BeefLibs/corlib/src/Int16.bf
+++ b/BeefLibs/corlib/src/Int16.bf
@@ -1,6 +1,6 @@
 namespace System
 {
-	struct Int16 : int16, IInteger, ISigned, IHashable, IFormattable, IOpComparable, IIsNaN, IOpNegatable, IOpAddable
+	struct Int16 : int16, IInteger, ISigned, IHashable, IFormattable, IOpComparable, IIsNaN, IOpNegatable, IOpAddable, IOpSubtractable
 	{
 		public const int32 MaxValue = 0x7FFF;
 		public const int32 MinValue = -0x8000;
@@ -15,6 +15,11 @@ namespace System
 			return (SelfBase)lhs + (SelfBase)rhs;
 		}
 
+		public static Self operator-(Self lhs, Self rhs)
+		{
+			return (SelfBase)lhs - (SelfBase)rhs;
+		}
+
 		public static Self operator-(Self value)
 		{
 			return (SelfBase)value;
diff --git a/BeefLibs/corlib/src/Int32.bf b/BeefLibs/corlib/src/Int32.bf
index 40edb415..1beb6239 100644
--- a/BeefLibs/corlib/src/Int32.bf
+++ b/BeefLibs/corlib/src/Int32.bf
@@ -2,7 +2,7 @@ using System.Globalization;
 
 namespace System
 {
-	struct Int32 : int32, IInteger, ISigned, IHashable, IFormattable, IOpComparable, IIsNaN, IOpNegatable, IOpAddable
+	struct Int32 : int32, IInteger, ISigned, IHashable, IFormattable, IOpComparable, IIsNaN, IOpNegatable, IOpAddable, IOpSubtractable
 	{
 		public enum ParseError
 		{
@@ -24,6 +24,11 @@ namespace System
 			return (SelfBase)lhs + (SelfBase)rhs;
 		}
 
+		public static Self operator-(Self lhs, Self rhs)
+		{
+			return (SelfBase)lhs - (SelfBase)rhs;
+		}
+
 		public static Self operator-(Self value)
 		{
 			return (SelfBase)value;
diff --git a/BeefLibs/corlib/src/Int64.bf b/BeefLibs/corlib/src/Int64.bf
index 300672df..7e486487 100644
--- a/BeefLibs/corlib/src/Int64.bf
+++ b/BeefLibs/corlib/src/Int64.bf
@@ -25,6 +25,11 @@ namespace System
 			return (SelfBase)lhs + (SelfBase)rhs;
 		}
 
+		public static Self operator-(Self lhs, Self rhs)
+		{
+			return (SelfBase)lhs - (SelfBase)rhs;
+		}
+
 		public static Int64 operator-(Int64 value)
 		{
 			return -(SelfBase)value;
diff --git a/BeefLibs/corlib/src/Int8.bf b/BeefLibs/corlib/src/Int8.bf
index 2ca5fe10..afb4a00f 100644
--- a/BeefLibs/corlib/src/Int8.bf
+++ b/BeefLibs/corlib/src/Int8.bf
@@ -1,6 +1,6 @@
 namespace System
 {
-	struct Int8 : int8, IInteger, ISigned, IHashable, IFormattable, IOpComparable, IIsNaN, IOpNegatable, IOpAddable
+	struct Int8 : int8, IInteger, ISigned, IHashable, IFormattable, IOpComparable, IIsNaN, IOpNegatable, IOpAddable, IOpSubtractable
 	{
 		public const int32 MaxValue = 0x7F;
 		public const int32 MinValue = -0x80;
@@ -15,6 +15,11 @@ namespace System
 			return (SelfBase)lhs + (SelfBase)rhs;
 		}
 
+		public static Self operator-(Self lhs, Self rhs)
+		{
+			return (SelfBase)lhs - (SelfBase)rhs;
+		}
+
 		public static Self operator-(Self value)
 		{
 			return (SelfBase)value;
diff --git a/BeefLibs/corlib/src/UInt.bf b/BeefLibs/corlib/src/UInt.bf
index 43d48847..c94623d6 100644
--- a/BeefLibs/corlib/src/UInt.bf
+++ b/BeefLibs/corlib/src/UInt.bf
@@ -1,6 +1,6 @@
 namespace System
 {
-	struct UInt : uint, IInteger, IUnsigned, IHashable, IOpComparable, IFormattable, IIsNaN, IOpAddable
+	struct UInt : uint, IInteger, IUnsigned, IHashable, IOpComparable, IFormattable, IIsNaN, IOpAddable, IOpSubtractable
 	{
 		public enum ParseError
 		{
@@ -27,6 +27,11 @@ namespace System
 			return (SelfBase)lhs + (SelfBase)rhs;
 		}
 
+		public static Self operator-(Self lhs, Self rhs)
+		{
+			return (SelfBase)lhs - (SelfBase)rhs;
+		}
+
 		public int GetHashCode()
 		{
 			return (int)this;
diff --git a/BeefLibs/corlib/src/UInt16.bf b/BeefLibs/corlib/src/UInt16.bf
index 1664dc87..60bb40f6 100644
--- a/BeefLibs/corlib/src/UInt16.bf
+++ b/BeefLibs/corlib/src/UInt16.bf
@@ -1,6 +1,6 @@
 namespace System
 {
-	struct UInt16 : uint16, IInteger, IUnsigned, IHashable, IFormattable, IOpComparable, IIsNaN, IOpNegatable, IOpAddable
+	struct UInt16 : uint16, IInteger, IUnsigned, IHashable, IFormattable, IOpComparable, IIsNaN, IOpNegatable, IOpAddable, IOpSubtractable
 	{
 		public const uint16 MaxValue = (uint16)0xFFFF;
 		public const uint16 MinValue = 0;
@@ -15,6 +15,11 @@ namespace System
 			return (SelfBase)lhs + (SelfBase)rhs;
 		}
 
+		public static Self operator-(Self lhs, Self rhs)
+		{
+			return (SelfBase)lhs - (SelfBase)rhs;
+		}
+
 		public static Self operator-(Self value)
 		{
 			return (SelfBase)value;
diff --git a/BeefLibs/corlib/src/UInt32.bf b/BeefLibs/corlib/src/UInt32.bf
index 0da00fc9..32c73016 100644
--- a/BeefLibs/corlib/src/UInt32.bf
+++ b/BeefLibs/corlib/src/UInt32.bf
@@ -1,6 +1,6 @@
 namespace System
 {
-	struct UInt32 : uint32, IInteger, IUnsigned, IHashable, IOpComparable, IFormattable, IIsNaN, IOpAddable
+	struct UInt32 : uint32, IInteger, IUnsigned, IHashable, IOpComparable, IFormattable, IIsNaN, IOpAddable, IOpSubtractable
 	{
 		public enum ParseError
 		{
@@ -22,6 +22,11 @@ namespace System
 			return (SelfBase)lhs + (SelfBase)rhs;
 		}
 
+		public static Self operator-(Self lhs, Self rhs)
+		{
+			return (SelfBase)lhs - (SelfBase)rhs;
+		}
+
 		public int GetHashCode()
 		{
 			return (int)this;
diff --git a/BeefLibs/corlib/src/UInt64.bf b/BeefLibs/corlib/src/UInt64.bf
index 44ed8c10..05586bbc 100644
--- a/BeefLibs/corlib/src/UInt64.bf
+++ b/BeefLibs/corlib/src/UInt64.bf
@@ -24,6 +24,11 @@ namespace System
 			return (SelfBase)lhs + (SelfBase)rhs;
 		}
 
+		public static Self operator-(Self lhs, Self rhs)
+		{
+			return (SelfBase)lhs - (SelfBase)rhs;
+		}
+
 	    public int GetHashCode()
 		{
 			return (int)this;
diff --git a/BeefLibs/corlib/src/UInt8.bf b/BeefLibs/corlib/src/UInt8.bf
index 241007e1..cf70d256 100644
--- a/BeefLibs/corlib/src/UInt8.bf
+++ b/BeefLibs/corlib/src/UInt8.bf
@@ -1,6 +1,6 @@
 namespace System
 {
-	struct UInt8 : uint8, IInteger, IUnsigned, IHashable, IFormattable, IOpComparable, IIsNaN, IOpNegatable, IOpAddable
+	struct UInt8 : uint8, IInteger, IUnsigned, IHashable, IFormattable, IOpComparable, IIsNaN, IOpNegatable, IOpAddable, IOpSubtractable
 	{
 	    public const uint8 MaxValue = (uint8)0xFF;        
 	    public const uint8 MinValue = 0;
@@ -15,6 +15,11 @@ namespace System
 			return (SelfBase)lhs + (SelfBase)rhs;
 		}
 
+		public static Self operator-(Self lhs, Self rhs)
+		{
+			return (SelfBase)lhs - (SelfBase)rhs;
+		}
+
 		public static Self operator-(Self value)
 		{
 			return (SelfBase)value;