oh noooooes, BoJo lied to the aged good, sweet queen Lilbet who granted his request to dissolve parliament!

41.Two fundamental principles of our constitutional law  are relevant to the present case. The  first is the principle of Parliamentary sovereignty: that laws enacted by the Crown in Parliament are the supreme form of law in our legal system, with which everyone, including the Government, must comply. However, the effect which the courts have given to Parliamentary sovereignty is not  confined to recognising the status of the legislation enacted by the Crown in Parliament as our highest form of law.
[...]
42.The sovereignty  of Parliament would, however, be undermined as the foundational principle of our constitution if the executive could, through the use of the prerogative, prevent Parliament from exercising its legislative authority for as long as it pleased. That, however, would be the position if there was no legal limit upon the power to prorogue Parliament (subject to a few exceptional circumstances in which, under statute, Parliament can meet while it stands  prorogued). An unlimited power of prorogation would therefore be incompatible with the legal principle of Parliamentary sovereignty.

Tue Sep 24th, 2019 in A few first principles