Re: [racket] Redex: typesetting variable/label sets

2012-10-02 Thread Matthias Felleisen
On Oct 2, 2012, at 1:41 PM, Asumu Takikawa wrote: > Hi all, > > In PL papers, you often see grammars like the following: > > e ::= ... | λx.e | (e e) > x ∈ Var > > In particular, variables are typeset as elements of some set. Often, > there are other sets that might represent labels, locatio

[racket] Redex: typesetting variable/label sets

2012-10-02 Thread Asumu Takikawa
Hi all, In PL papers, you often see grammars like the following: e ::= ... | λx.e | (e e) x ∈ Var In particular, variables are typeset as elements of some set. Often, there are other sets that might represent labels, locations, tags, and so on. I don't see an obvious way to do this kind of