I literally asked this same question yesterday in #Clojure. The answer
is and

user/ (doc and)
-------------------------
clojure.core/and
([] [x] [x & rest])
Macro
  Evaluates exprs one at a time, from left to right. If a form
  returns logical false (nil or false), and returns that value and
  doesn't evaluate any of the other expressions, otherwise it returns
  the value of the last expr. (and) returns true.
nil

user/ (and true false)
false

user/ (and false true)
false

On Feb 10, 9:43 pm, Onorio Catenacci <catena...@gmail.com> wrote:
> On Feb 10, 10:14 pm, Jeffrey Straszheim <straszheimjeff...@gmail.com>
> wrote:
>
> > This one is easy:
>
> >    (and this that the-other-thing)
>
> > and is short-circuting, e.g. it returns nil/false on reaching the first
> > nil/false element, or the value of the last element.
>
> > I used it tonight like this:
>
> >    (and x (inc x))
>
> > This returns x+1, unless x is nil, in which case it returns nil.
>
> > Make sense?
>
> Yes, perfect sense.  Seems so bloody obvious now--don't know why I
> never thought to look for (and) on the Clojure website.  Thanks for
> the assist.
>
> --
> Onorio Catenacci III
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