[mercury-users] boolean expressions from semidet predicates

[Julien Fischer]

On Fri, 12 May 2006, Nicholas Nethercote wrote:

> Is there a way to easily write an equality as a closure?  (And a lambda
> expression doesn't count as easy in my book.)  Eg. is there a built-in
> predicate equals/2 that is the same as '=', or similar?

unify/2.

Julien.
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