It might force the government to find ways of staying in the single market. (politics.co.uk)
But we have given up on staying in the single market (which would require us to accept European jurisdiction and the free movement of labor) or the customs union. (blog.politics.ox.ac.uk)
Is this a clever attempt to stay in the single market without saying so - by setting conditions for exit which they know will never be fulfilled? (politics.co.uk)