Now, the clause "as far as I can tell" is doing a *lot* of work in that sentence. I am reasonably math literate, up to first-year calculus and a lifetime spent around my father (a mathematician). However, I have never heard of "the Jacobian conjecture," and while I know what all the words in the first paragraph of the relevant Wikipedia entry mean, I can't parse any of the sentences they form:
https://en.wikipedia.org/wiki/Jacobian_conjecture
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