Question: trouble with inequal plot

Hi,

 i have 2 inequal plots i want to show in the same window:

with(plots):
p1 := inequal({x-y <= 1, x+y > 0}, x = -3 .. 3, y = -3 .. 3, optionsfeasible = (color = red)):
p2 := inequal({y < 0, x < 0}, x = -3 .. 3, y = -3 .. 3, optionsfeasible = (color = blue)): display(p1, p2);

Obviously, this doesn't work. Each single plot works. What can i do ?

 

 

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