p(x,y,z) = (x # (y # (z # z))) # ((y # (y # x)) # z). % Pixley_1 p(x,y,z) = (x # ((z # z) # y)) # ((y # (y # x)) # z). % Pixley_2 p(x,y,z) = (x # (y # (y # z))) # ((y # (y # x)) # z). % Pixley_3 p(x,y,z) = (x # (y # (x # z))) # ((y # (y # x)) # z). % Pixley_4 p(x,y,z) = (x # (y # (z # z))) # (((x # x) # y) # z). % Pixley_5 p(x,y,z) = (x # (y # (z # z))) # ((y # (x # x)) # z). % Pixley_6 p(x,y,z) = (x # ((z # z) # y)) # (((x # x) # y) # z). % Pixley_7 p(x,y,z) = (x # ((z # z) # y)) # ((y # (x # x)) # z). % Pixley_8 p(x,y,z) = (x # (y # (y # z))) # (((x # x) # y) # z). % Pixley_9 p(x,y,z) = (x # (y # (y # z))) # ((y # (x # x)) # z). % Pixley_10 p(x,y,z) = (x # (y # (x # z))) # (((x # x) # y) # z). % Pixley_11 p(x,y,z) = (x # (y # (x # z))) # ((y # (x # x)) # z). % Pixley_12 p(x,y,z) = (x # (y # (z # y))) # ((y # (y # x)) # z). % Pixley_13 p(x,y,z) = (x # (y # (z # y))) # (((x # x) # y) # z). % Pixley_14 p(x,y,z) = (x # (y # (z # y))) # ((y # (x # x)) # z). % Pixley_15 p(x,y,z) = (x # (y # (z # z))) # ((y # (x # y)) # z). % Pixley_16 p(x,y,z) = (x # (y # (y # z))) # ((y # (x # y)) # z). % Pixley_17 p(x,y,z) = (x # (y # (x # z))) # ((y # (x # y)) # z). % Pixley_18 p(x,y,z) = (x # ((z # z) # y)) # ((y # (x # y)) # z). % Pixley_19 p(x,y,z) = (x # (y # (z # y))) # ((y # (x # y)) # z). % Pixley_20 p(x,y,z) = ((y # (x # z)) # z) # (x # (y # (z # z))). % Pixley_21 p(x,y,z) = ((y # (x # z)) # z) # (x # (y # (y # z))). % Pixley_22 p(x,y,z) = ((y # (x # z)) # z) # (x # (y # (x # z))). % Pixley_23 p(x,y,z) = ((y # (x # z)) # z) # (x # ((z # z) # y)). % Pixley_24 p(x,y,z) = ((y # (x # z)) # z) # (x # (y # (z # y))). % Pixley_25 p(x,y,z) = (x # (y # (z # z))) # ((y # (x # z)) # z). % Pixley_26 p(x,y,z) = (x # (y # (y # z))) # ((y # (x # z)) # z). % Pixley_27 p(x,y,z) = (x # (y # (x # z))) # ((y # (x # z)) # z). % Pixley_28 p(x,y,z) = (x # ((z # z) # y)) # ((y # (x # z)) # z). % Pixley_29 p(x,y,z) = (x # (y # (z # y))) # ((y # (x # z)) # z). % Pixley_30