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Tests
     
 Equal (==)
 Unequal (!=)
 SameQ (===)
 UnsameQ (=!=)

 Less (<)
 Greater (>)
 LessEqual (<=)
 GreaterEqual (>=)

 NumberQ
 NumericQ
 IntegerQ
 EvenQ
 OddQ
 PrimeQ
 Positive
 Negative
 NonPositive
 NonNegative

 VectorQ
 MatrixQ
 PolynomialQ

 MemberQ
 FreeQ

 TrueQ
 AtomQ
 MatchQ
 ValueQ


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