Re: [racket-users] Getting errors running PLT-Redex book example

2019-01-12 Thread Mike MacHenry
Thanks Ben. Good to know. Hey Robbie, it's been a while. Hope everything is going well. Great book. :) -mike On Jan 12, 2019 12:04, "Robby Findler" wrote: Hi Mike! Thanks for pointing this out. I've updated the errata (Thanks, Ben for those links; I was having trouble finding the date of the

Re: [racket-users] Getting errors running PLT-Redex book example

2019-01-12 Thread Robby Findler
Hi Mike! Thanks for pointing this out. I've updated the errata (Thanks, Ben for those links; I was having trouble finding the date of the change.) Robby On Sat, Jan 12, 2019 at 4:41 AM Mike MacHenry wrote: > > Hey everyone, > > I'm having an issue with one of the examples from Semantics

Re: [racket-users] Getting errors running PLT-Redex book example

2019-01-12 Thread Ben Greenman
You discovered a backwards incompatible change to Redex. Changing M and N to A and B is a good fix. (The errata really should talk about this.) Here are two related threads: https://groups.google.com/d/msg/racket-users/be54SG881GU/bndA4eiGAQAJ

[racket-users] Getting errors running PLT-Redex book example

2019-01-12 Thread Mike MacHenry
Hey everyone, I'm having an issue with one of the examples from Semantics Engineering With PLT Redex. Specifically in 12.3 on page 225, the definition for the iswim-standard reduction relation. As printed in the book, I get the error "reduction-relation: shortcut name may not be a non-terminal