C# is an ECMA standard, which is open and that allows things like the Mono project to exist. See: Standard ECMA-334 C# Language Specification[^]
"On two occasions, I have been asked [by members of Parliament], 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able to rightly apprehend the kind of confusion of ideas that could provoke such a question." --Charles Babbage (1791-1871) My: Website | Blog
