To invoke Article 50 would require a new bill to repeal the 1972 European Communities Act that took Britain into the EU. That will not happen till November at earliest. 650 MPs, majority of 326 needed. Currently 331 Tories, 232 Labour, 56 SNP, 31 others. If only half the Tories and half Labour vote to remain plus SNP = 337. Stop fighting amongst yourselves. It is not going to happen anyway.