27 lines
458 B
Markdown
27 lines
458 B
Markdown
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## x
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Combinator
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Take a quoted function `F` and run it with itself as the first item on
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the stack.
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[F] x
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-----------
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[F] F
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### Definition
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dup i
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### Discussion
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The simplest recursive pattern.
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See the [Recursion Combinators notebook](https://joypy.osdn.io/notebooks/Recursion_Combinators.html).
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as well as
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[Recursion Theory and Joy](https://www.kevinalbrecht.com/code/joy-mirror/j05cmp.html) by Manfred von
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