Improved sentence structures to make up for my limited vocubulary.

source/algorithms/deutsch.rst

@@ -75,12 +75,12 @@ make our decision of whether we have a balanced or constant oracle.
 So how many times exactly do we need to call the oracle here?
 
 If we call the oracle passing it :math:`0`, the first combination will return :math:`1`.
-But the third combination will also return :math:`1`. Note also that the second combination
+But the third combination will also return :math:`1`. Also, the second combination
 will return :math:`0` with :math:`0`. We cannot hope to know if the oracle is balanced
 or constant by passing it :math:`0` alone. The same argument applies for :math:`1`.
 
 But note that if we call the oracle with :math:`0` then with :math:`1`, we can make some progress.
-If :math:`f(0)=0` and :math:`f(1)=0` are equal then we know the oracle is constant by definition.
+If :math:`f(0)` and :math:`f(1)` are equal then we know the oracle is constant by definition.
 The same argument can be used by definition of a balanced function.
 
 Therefore we need to call the oracle once for :math:`f(0)` and once for :math:`f(1)` to solve