diff --git a/gp.jl b/gp.jl
index 3fa00ff..c5764f6 100644
--- a/gp.jl
+++ b/gp.jl
@@ -18,3 +18,40 @@ Selection:      Tournament
 =#
 
 
+function math_expr(op, op1, op2)
+    expr = Expr(:call, op, , op1, op2)
+    return expr
+end
+
+function GT(a,b)
+    if a > b
+        return 1
+    else
+        return -1
+    end
+end
+
+function DIV(a,b)
+    if abs(b) < 10.0^-10
+        return 1
+    else
+        return a/b
+    end
+end
+
+function create_single_full_tree(depth, function_set, terminal_set)
+    # If we are not at the bottom
+    if depth > 2:
+        fn = function_set[1]
+        trm1 = create_single
+end
+
+
+function main()
+
+    function_set = [:+, :-, :DIV, :GT]
+    terminal_Set = ["x", "v", -1]
+
+
+end
+main()