Re: [isabelle] quotient_type command fails

On Thu, 12 Jun 2014, Lawrence Paulson wrote:

Isabelle dates from an era when no names contained white space, so it wasn’t even thought about.

I am myself too young for that, but my Compiler Construction professor used to tell us that really old versions of FORTRAN allowed white space in identifiers, which was before there was a clear concept of a "token" in programming languages. It was one of his "never do this at home" examples -- he had other ones drawn from Knuth's TeX language.


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