Typo!

[Paul Meier]

In my last e-mail, I made a small mistake in the example program.
Here's the fixed version (namely, there was an extra "value" assignment right after the else clause):

------------------------------------------
function() {
    var value        = false;
    var computed = false;
    if (computed) {
        return value;
    else {
        onceE(oneE(6)).mapE( function(x) {  value = x; });
        computed = true;
        return value;
    }
}
------------------------------------------

 Sorry for the confusion! 

-Paul