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RE: Logical Expression


Martin,

Your common sense seems to be based on the assumption that your
"something" is a real number. What do you expect if it is a complex
number, of a symbolic expression?

Making your assumption more explicit gives your expected result:

Assuming[ Element[ a , Reals], Simplify[a == 0 && a > 0]]

returns False.

Regards,

Fred Simons
Eindhoven University of Technology


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