In short, we've lost. THREAD
The Judge has decided that because the Government accepts that it will send the letter and not frustrate the purpose of the Act, it is "neither necessary nor appropriate" to make orders. 
The Judge adds that the Government's position is underpinned by the fact that the Advocate General for Scotland (the PM's 'man in London' if you like) is an officer of the court.
The true heart of the Court's reasoning can be seen in this passage. The true question raised by this case (see next tweet) is whether the Government is committed to this "core principle".
I expressed this dilemma here (on Friday). I would rather live in the world the Court believes continues to exist. But I doubt we do.
As we have extracted promises from the Govt, the question whether this loss matters depends on whether you think I am right or the Court is right. But, on any view, there are now risks of an unlawful Brexit that would not, had the decision gone the other way, have existed.
I expect the Inner House of the Court of Session tomorrow to hear our appeal. /ENDS
