Method List
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count_digit? Pred
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dec Pred
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decrement_char Pred
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decrement_string Pred
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decrementals? Pred
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decrements? Pred
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digit? Pred
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letter? Pred
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letter_digit? Pred
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lone_bottom? Pred
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lower? Pred
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#pred Integer
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#pred String
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#pred Symbol
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#pred! String
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upper? Pred