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UnsameQ

lhsUnsameQrhs
yields True if the expression lhs is not identical to rhs, and yields False otherwise.
  • e1UnsameQe2UnsameQe3 gives True if no two of the ei are identical.
EXAMPLESCLOSE ALL
Basic Examples   (2)
Test whether two expressions are not identically the same:
NotEqual remains symbolic unless literal values are given:
Full form:
Test whether two expressions are not identically the same:
In[1]:=
Click for copyable input
Out[1]=
In[2]:=
Click for copyable input
Out[2]=
NotEqual remains symbolic unless literal values are given:
In[3]:=
Click for copyable input
Out[3]=
 
Full form:
In[1]:=
Click for copyable input
Out[1]=
Scope   (3)
Test equivalence of strings:
Numbers in different representations are not the same:
NotEqual nevertheless treats them as equal:
Test whether multiple expressions are all distinct:
Applications   (1)
Construct the permanent analog of the totally antisymmetric tensor:
1 appears at positions corresponding to permutations:
New in 2
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