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Built-in Mathematica Symbol

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CellLabelAutoDelete

CellLabelAutoDelete
is an option for Cell which specifies whether a label for the cell should be automatically deleted if the contents of the cell are modified or the notebook containing the cell is saved in a file.

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Cell styles that represent Mathematica input and output typically have CellLabelAutoDelete->True.

CellLabelAutoDelete is more often set for styles of cells than for individual cells.

EXAMPLES

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Basic Examples (1)

Create a notebook with the setting CellLabelAutoDelete->True:

In[1]:=

When inputs are evaluated, cell labels are attached to the input and output cells:

In[2]:=

If you edit a previously evaluated input cell, its cell label is cleared:

When the notebook is saved, cell labels are automatically deleted:

In[3]:=

In[4]:=

When the notebook is reopened, no cell labels are present:

In[5]:=

Scope (1)