Don't Care in Prolog -

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Is there a way to tell the prolol that any element in the list can be of value? I tried to use _ but it was not working I am trying to compare zero and two lists, but in some places I do not care about value, for example : I have the _ element on [1,1,1] == [1,1, _] back to true

Instead use the following: 

 < Code> [1,1,1] = [1,1, _]

== / 2 similar The test for T, which is stronger than = / 2 (which instantiates).


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