I\'ve read \"what-is-turing-complete\" and the wikipedia page, but I\'m less interested in a formal proof than in the practical implications of being Turing Complete.
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I cannot remember seeing anything like minimum features for Turing Completeness. However, if your language supports loops and conditional branches, the chances that it is Turing complete is good. However, the only way to prove it is still to similate a Turing Machine or another Turing Complete language.