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OrderedQ
OrderedQ[
h
[
,
, ... ]] gives True if the  are in canonical order, and False otherwise.
See notes for Order.
OrderedQ[
e
,
e
] gives True.
By default, OrderedQ uses canonical order as described in the notes for Sort.
OrderedQ[
list
,
p
] uses the function p to determine whether each pair of elements in list is in order.
See the Mathematica book: Section 1.8.13, Section 2.3.5.
See also: Signature, Sort.
Further Examples
Mathematica puts lower-case expressions before upper-case expressions that start with the same letter.
In[1]:= 
Out[1]= 
Shorter expressions come before longer expressions.
In[2]:= 
Out[2]= 
THIS IS DOCUMENTATION FOR AN OBSOLETE PRODUCT. SEE THE DOCUMENTATION CENTER FOR THE LATEST INFORMATION. | | | |
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