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1 point by randallsquared 5897 days ago | link | parent

Hrm. Also, (|a:b| ...) works, but shouldn't.


2 points by nostrademons 5895 days ago | link

It's because the ~: syntax is expanded at evaluation time, not at read-time. The Arc compiler looks at each symbol, and if it has one of those characters, it splits on the :, wraps in (compose ...), and adds a (complement ...) form every time the section begins with ~.

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