Opponents of Brexit claim that because the EU referendum result is advisory it must be approved by a vote in the Commons before Article 50 - the formal mechanism to leave the EU - is triggered.

However, in a move which will cheer Eurosceptics, The Telegraph has learned that Mrs May will invoke Article 50 without a vote in Parliament 

It had been suggested - by Tony Blair, the former Labour Prime Minister, and Owen Smith, the Labour leadership candidate, among others -  that Remain-supporting MPs could use a Parliamentary vote to stop Brexit.

But sources say that because Mrs May believes that "Brexit means Brexit" she will not offer opponents the opportunity to stall Britain's withdrawal from the EU.

A Downing Street source said: "The Prime Minister has been absolutely clear that the British public have voted and now she will get on with delivering Brexit."