Symbol |
Description |
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variable set of instructions or tokens |
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-th possible token (an integer) |
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current number of tokens |
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set of strings over alphabet , containing the search space of programs |
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total current code |
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-th token of code |
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-th frozen program , where total code starts with |
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-pointer to the highest address of code |
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start address of a program (prefix) solving all tasks so far |
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top frozen address, can only grow,
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current code bias |
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variable set of tasks, ordered in cyclic fashion; each task has a computation tape |
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set of possible tape symbols (here: integers) |
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set of strings over alphabet , defining possible states stored on tapes |
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an element of |
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variable state of task , stored on tape |
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-th component of |
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length of any string |
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equal to if
or equal to if
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current instruction pointer of task , encoded on tape within state |
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variable probability distribution on , encoded on tape as part of |
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current history-dependent probability of selecting if |
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