UnsameQ

lhs=!=rhs

yields True if the expression lhs is not identical to rhs, and yields False otherwise.

Details

  • e1=!=e2=!=e3 gives True if no two of the ei are identical.

Examples

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Basic Examples  (2)

Test whether two expressions are not identically the same:

In[1]:=
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Out[1]=
In[2]:=
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Out[2]=

!= remains symbolic unless literal values are given:

In[3]:=
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Out[3]=

Full form:

In[1]:=
Click for copyable input
Out[1]=

Scope  (3)

Applications  (1)

See Also

Equal  Order  SameQ

Tutorials

Introduced in 1991
(2.0)