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based on an earlier version of the Wolfram Language.
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CirclePlus

CirclePlus
displays as .
A CirclePlus expression is formatted as an -ary operation with operator :
Input using the operator is interpreted as a CirclePlus expression:
Add a definition to :
Clear the definition:
A CirclePlus expression is formatted as an -ary operation with operator :
In[1]:=
Click for copyable input
Out[1]=
 
Input using the operator is interpreted as a CirclePlus expression:
In[1]:=
Click for copyable input
Out[1]//FullForm=
 
Add a definition to :
In[1]:=
Click for copyable input
In[2]:=
Click for copyable input
Out[2]=
Clear the definition:
In[3]:=
Click for copyable input
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