The "equal-always" operator is the same as "egal"[1], and "equal-now" is the same as "iso" in Arc.

If I ever add an "equal-now" operator to Nulan, now I know what to call it!

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There's also various "-now" methods for mutable data types[2].

And there's an EqualityResult type, which reminds me of NULL in SQL[3].

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* [1]: http://home.pipeline.com/~hbaker1/ObjectIdentity.html

* [2]: http://www.pyret.org/docs/latest/string-dict.html#%28part._....