Question about Prolog matching -

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i'm brand new prolog , i'm trying match along lines of this:

rule(blah variable, ...).

basically i'm trying match atom "blah" followed expression. possible?

if using swi can use atom_concat/3:

rule(x, ....):-   atom_concat(blah, y, x),    ...

e.g.: suppose x=blahsomethingelse atom_concat(blah, y, x) instantiate y somethingelse. note atom_concat works atoms.


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