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A comment on PyFL – new functional programming language from Bill Wadge. Parent comment

Re:PyFL – new functional programming language from Bill Wadge by ModernMech on Friday January 14, 2022 @08:04AM (#29933937)
Indeed, these languages are descendants of ISWIM by Peter Landin.

ISWIM also inspired Lucid, so I guess PyFL would be a nephew of SASL in that case.

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Re:PyFL – new functional programming language from Bill Wadge by tgv on Friday January 14, 2022 @08:48AM (#29934358)
ISWIM isn't lazy, I think, nor fully functional.
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Re:PyFL – new functional programming language from Bill Wadge by ModernMech on Friday January 14, 2022 @09:11AM (#29934571)
Right, but it’s still the root of the functional branch of the PL family tree. ISWIM to ML is mostly a matter of removing the few imperative features from ISWIM. Once you do that, lazy execution comes naturally.
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