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The position of Polish informatics, both in research and teaching, in the world of informatics, has its roots in the achievements of the Polish mathematicians of the Warsaw School and the logicians of the Lvov-Warsaw School. Jan Lukasiewicz is the most famous Polish logician in the world of computer science. Invented by him, the parenthesis-free notation is known as PN (Polish Notation) and RPN (Reverse...
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