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<body class='hmmessage'><div dir='ltr'>HI,<div><br></div><div>I would like to know if the first one is valid why not the second one?</div><div><br></div><div><pre style="font-family: monospace, Courier; padding: 1em; border: 1px dashed rgb(47, 111, 171); background-color: rgb(249, 249, 249); line-height: 1.3em; font-size: 13px; ">case L of
{answer, N} when N == 42 -> true;
_ -> false
end.</pre></div><div><br></div><div><pre style="font-family: monospace, Courier; padding: 1em; border: 1px dashed rgb(47, 111, 171); background-color: rgb(249, 249, 249); line-height: 1.3em; font-size: 13px; ">case L of
{answer, N} when N == M:F(A) -> true;
_ -> false
end.</pre></div> </div></body>
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