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# Isogram Determine if a word or phrase is an isogram. An isogram (also known as a "nonpattern word") is a word or phrase without a repeating letter, however spaces and hyphens are allowed to appear multiple times. Examples of isograms: - lumberjacks - background - downstream - six-year-old The word *isograms*, however, is not an isogram, because the s repeats. ## Testing Exercises If you followed the [installation instructions](http://exercism.io/languages/factor/installing), just run the provided test suite against your implementation with `"exercise-name" test`. ## Submitting Exercises Note that, when trying to submit an exercise, make sure the solution is in the `exercism/factor/exercise-name` directory. For example, if you're submitting `bob.factor` for the Bob exercise, the submit command would be something like `exercism submit exercism/factor/bob/bob.factor`. For more detailed information about running tests, code style and linting, please see the [help page](http://exercism.io/languages/factor). ## Source Wikipedia [https://en.wikipedia.org/wiki/Isogram](https://en.wikipedia.org/wiki/Isogram) ## Submitting Incomplete Solutions It's possible to submit an incomplete solution so you can see how others have completed the exercise.
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74 entries across 74 versions & 1 rubygems