No we're the same the prime minister cannot act without the agreement of parliament even if primus inter pares is a concept she finds difficult to grasp and seems to be determined to send to the dustbin of history.
Yeah but it's not the PM, it's old Queenie who is HoS - by the time she signs it's done and dusted - isn't it? I thought - could be wrong - that it was the act of signing by the Queen that turned it into Law. And even with Maybe she turns up after everything is agreed, as a rule. Only if things get badly stuck and the officials can't sort it do the principals get involved. I don't know our exact process for sure - I just thought that the principle was that once the Heads of State or their official representatives signed that was it. If Parliamentary or Congressional approval was required, that should be obtained before the Heads of State made it legal...