Stream: Archive Mirror: Isabelle Users Mailing List

Topic: [isabelle] Nominal2 Isabelle. Default and invariants for ...


view this post on Zulip Email Gateway (Aug 22 2022 at 16:54):

From: Mark Wassell <mpwassell@gmail.com>
Hello,

I am having problems discharging the proof obligations for a nominal
function that I have written. The short sequence of 'apply's that I have
used in previous proofs, and have seen in uses of Nominal2 in the AFP, is
not working.

I notice the appearance of 'default' and 'invariant' on some nominal
functions in the AFP. I can see what the type signatures of these are and
can guess how to construct them.

My questions is: What are these used for and can they help?

Cheers

Mark


Last updated: Nov 21 2024 at 12:39 UTC