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Mathematica > Core Language > Rules & Patterns > Pattern Matching Functions > MatchQ >

BUILT-IN MATHEMATICA SYMBOL

MatchQ

returns True if the pattern form matches expr, and returns False otherwise.

Test if an expression is an integer:

Test if an expression is a sum of two or more terms:

Test if an expression is explicitly zero:

Test if an expression is an integer:

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Test if an expression is a sum of two or more terms:

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Test if an expression is explicitly zero:

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