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please is it possible with mathematica, thank you!


Hi mathematica community!
I have this input: Not[(y > 0)] and Exists[{x}, (x > 0) && y == x -
1]
I want mathematica to give me y==0 as output.
Is it possible and if it is what predefined function should I use?In
this function I want to make this assumption:
 x and y are integers.
thank you very much.


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