fixed a typo

app_functions.py

@@ -46,7 +46,7 @@ def getSecondFromPair(p):
 def dec_to_lambda_relative_integers(number):
     if number >= 0:
         return pair(TRUE,dec_to_church(number))
-    return pair(FALSE[False], dec_to_church(number))
+    return pair(FALSE, dec_to_church(number))
 
 # def succ(n):#done
 #     return beta_reduction_totale(new_app(SUCCS,n),None,False)