diff --git a/stl/__init__.py b/stl/__init__.py
index b4b073b..a3574eb 100644
--- a/stl/__init__.py
+++ b/stl/__init__.py
@@ -4,3 +4,4 @@ from stl.ast import LinEq, Interval, NaryOpSTL, Or, And, F, G, ModalOp, Neg, Var
 from stl.parser import parse
 from stl.synth import lex_param_project
 from stl.boolean_eval import pointwise_sat
+from stl.fastboolean_eval import pointwise_satf
diff --git a/stl/fastboolean_eval.py b/stl/fastboolean_eval.py
index f6d69b4..3fb40c2 100644
--- a/stl/fastboolean_eval.py
+++ b/stl/fastboolean_eval.py
@@ -13,59 +13,59 @@ from bitarray import bitarray
 import stl.ast
 
 @singledispatch
-def pointwise_sat(stl):
+def pointwise_satf(stl):
     raise NotImplementedError
 
 
-@pointwise_sat.register(stl.Or)
+@pointwise_satf.register(stl.Or)
 def _(stl):
     def sat_comp(x,t):
         sat = bitarray(len(t))
         for arg in stl.args:
-            sat = pointwise_sat(arg)(x, t) | sat
+            sat = pointwise_satf(arg)(x, t) | sat
         return sat
     return sat_comp
 
 
-@pointwise_sat.register(stl.And)
+@pointwise_satf.register(stl.And)
 def _(stl):
     def sat_comp(x,t):
         sat = bitarray(len(t))
         sat.setall('True')
         for arg in stl.args:
-            sat = pointwise_sat(arg)(x, t) & sat
+            sat = pointwise_satf(arg)(x, t) & sat
         return sat
     return sat_comp
 
 
-@pointwise_sat.register(stl.F)
+@pointwise_satf.register(stl.F)
 def _(stl):
     lo, hi = stl.interval
     def sat_comp(x,t):
         sat = bitarray()
         for tau in t:
             tau_t = [min(tau + t2, x.index[-1]) for t2 in x[lo:hi].index]
-            sat.append((pointwise_sat(stl.arg)(x, tau_t)).count() > 0)
+            sat.append((pointwise_satf(stl.arg)(x, tau_t)).count() > 0)
         return sat
     return sat_comp
 
 
-@pointwise_sat.register(stl.G)
+@pointwise_satf.register(stl.G)
 def _(stl):
     lo, hi = stl.interval
     def sat_comp(x,t):
         sat = bitarray()
         for tau in t:
             tau_t = [min(tau + t2, x.index[-1]) for t2 in x[lo:hi].index]
-            point_sat = pointwise_sat(stl.arg)(x, tau_t)
+            point_sat = pointwise_satf(stl.arg)(x, tau_t)
             sat.append(point_sat.count() == point_sat.length())
         return sat
     return sat_comp
 
 
-@pointwise_sat.register(stl.Neg)
+@pointwise_satf.register(stl.Neg)
 def _(stl):
-    return lambda x,t: ~pointwise_sat(arg)(x, t) 
+    return lambda x,t: ~pointwise_satf(arg)(x, t) 
 
 
 op_lookup = {
@@ -77,7 +77,7 @@ op_lookup = {
 }
 
 
-@pointwise_sat.register(stl.AtomicPred)
+@pointwise_satf.register(stl.AtomicPred)
 def _(stl):
     def sat_comp(x, t):
         sat = bitarray()
@@ -86,7 +86,7 @@ def _(stl):
     return sat_comp
 
 
-@pointwise_sat.register(stl.LinEq)
+@pointwise_satf.register(stl.LinEq)
 def _(stl):
     op = op_lookup[stl.op]
     def sat_comp(x, t):
diff --git a/stl/test_fastboolean_eval.py b/stl/test_fastboolean_eval.py
index 043d754..2d0467f 100644
--- a/stl/test_fastboolean_eval.py
+++ b/stl/test_fastboolean_eval.py
@@ -21,5 +21,5 @@ class TestSTLRobustness(unittest.TestCase):
     @params(ex1, ex2, ex3, ex4, ex5, ex6, ex7, ex8, ex9)
     def test_stl(self, phi_str, r):
         phi = stl.parse(phi_str)
-        stl_eval = stl.fastboolean_eval.pointwise_sat(phi)
+        stl_eval = stl.fastboolean_eval.pointwise_satf(phi)
         self.assertEqual(stl_eval(x, [0]), r)