Of course that is not true.
A treaty between Egypt and the Ottoman Empire established an international border between the two in 1906. This international border was retained when Palestine was created out of the defunct Ottoman Empire.
The British suggestion of separating Transjordan from Palestine was approved by the League of Nations in 1922 setting the eastern international border of Palestine.
The Treaty of Lausanne Established the International border between Syria (and Lebanon) and Palestine in 1923.
You cant transfer a treaty made between two nations to suit your POV, so stop clutching at straws
Wrong as trans Jordan was still part of Palestine.
Does not matter as Palestine was never a nation to have any borders, and you cant transfer borders to a non existing entity. So until filistan comes into existence legally it cant have any international borders, and this means that they MUST sit down and talk with Israel, Jordan, Egypt and Syria to set their borders to be set in stone.
Who told you that? You need a better source.
Drawing up the framework of nationality, Article 30 of the Treaty of Lausanne stated:
“Turkish subjects habitually resident in territory which in accordance with the provisions of the present Treaty is detached from Turkey will become ipso facto, in the conditions laid down by the local law, nationals of the State to which such territory is transferred.”
Article 30 is of a great significance. It constituted a declaration of existing international law and the standard practice of states. This was despite the absence of a definite international law rule of state succession under which the nationals of predecessor state could ipso facto acquire the nationality of the successor.129 “As a rule, however, States have conferred their nationality on the former nationals of the predecessor State.”130 In practice, almost all peace treaties concluded between the Allies and other states at the end of World War I embodied nationality provisions similar to those of the Treaty of Lausanne. The inhabitants of Palestine, as the successors of this territory, henceforth acquired Palestinian nationality even if there was no treaty with Turkey.131
Genesis of Citizenship in Palestine and Israel
Ummmm, what did you prove exactly ?