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38 > is an arrow that takes a pair of values and combines them to return a single value:</p
39 ><pre class="sourceCode haskell"
41 ><span class="Special"
43 ><span class="Function FunctionDefinition"
45 ><span class="Normal NormalText"
46 > (Arrow a) => (b -> c -> d) -> a (b, c) d</span
48 /><span class="Special"
50 ><span class="Normal NormalText"
51 >unsplit = arr . </span
52 ><span class="Function"
54 ><span class="Normal NormalText"
57 /><span class="Special"
59 ><span class="Normal NormalText"
61 ><span class="Comment"
62 >-- arr (\op (x,y) -> x `op` y) </span
69 > combines two arrows into a new arrow by running the two arrows on a pair of values (one arrow on the first item of the pair and one arrow on the second item of the pair).</p
72 >f *** g = first f >>> second g
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