Wolfram Language Paclet Repository
Community-contributed installable additions to the Wolfram Language
Wolfram`TensorNetworks`
PathQ  |
Examples
(5)
Scope
(3)
Mixed singletons and pairs
(1)
Any combination of singleton and pair entries is accepted:
In[1]:=
 | PathQ |
Out[1]=
True
A pair followed by a singleton marker:
In[1]:=
| PathQ |
Out[1]=
True
An all-singleton list is still a valid tree-fragment path:
In[1]:=
| PathQ |
Out[1]=
True
Output of path-finders
(1)
Rejection cases
(1)
Applications
(1)
Properties & Relations
(1)
 |
|
 |
|
A canonical-form contraction path satisfies PathQ:
In[1]:=
| PathQ |
Out[1]=
True
A path with singleton markers is also accepted:
In[2]:=
| PathQ |
Out[2]=
True
A single contraction step is the smallest accepted path:
In[3]:=
| PathQ |
Out[3]=
True
A non-integer entry breaks the match:
In[4]:=
| PathQ |
Out[4]=
False
""