> without code
Excel is a programming language. Change my mind
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Conversation
Potentially more controversial take: PowerPoint animations are a (very inconvenient) programming language
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ms powerpoint was proven turing complete this is more like a fact than a take imo
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A programming language doesn’t have to be Turing-complete though! In fact many highly formal functional and logic programming languages are deliberately *not* Turing-complete to improve their theoretical properties.
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oh fascinating, can you give me an example to investigate?
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I believe Isabelle/HOL is not Turing-complete but don’t quote me on that. For a while many people believed Idris wasn’t, but a proof came out late last year
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ah apparently proofs have existed for a while, but I don’t know enough about Idris to say more
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Tbf I think that is more of a bug in Idris though. It’s a pretty hard thing to get right in a complicated surface language - Agda is often found to have these kinds of bugs in its totality checker.
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Complicated in terms of supporting mutual definitions/inductive recursive types, cumulative universes, etc, and trying not to get in your way as much as possible.