Oh, I see -- a specification in the style of "only perl can parse perl."

But then these "most implementations" are not implementations of "standard Markdown," hence my confusion.

Oh, I see -- a specification in the style of "only perl can parse perl."

All universal programming languages (assembler, C, CLIP, Lisp, Cobol, Python, Java) can parse perl as well.

0thomblake7yNote the qualifier - "most implementations that work with client data". Markdown is also used extensively to generate static content that is not user-generated.

[LINK] Steven Landsburg "Accounting for Numbers" - response to EY's "Logical Pinpointing"

by David_Gerard 1 min read14th Nov 201247 comments


"I started to post a comment, but it got long enough that I’ve turned my comment into a blog post."

So the study of second-order consequences is not logic at all; to tease out all the second-order consequences of your second-order axioms, you need to confront not just the forms of sentences but their meanings. In other words, you have to understand meanings before you can carry out the operation of inference. But Yudkowsky is trying to derive meaning from the operation of inference, which won’t work because in second-order logic, meaning comes first.

... it’s important to recognize that Yudkowsky has “solved” the problem of accounting for numbers only by reducing it to the problem of accounting for sets — except that he hasn’t even done that, because his reduction relies on pretending that second order logic is logic.