Stream: Archive Mirror: Isabelle Users Mailing List

Topic: [isabelle] Defining Recursive Functions in Isabelle/HOL


view this post on Zulip Email Gateway (Aug 18 2022 at 12:40):

From: TIMOTHY KREMANN <twksoa262@verizon.net>
I have entered everything from page 13 exactly as in the paper (except added "" where necessary).
And I get the following message from line 18 (counting the blank line):

*** Unknown fact "\<langle>f n \<noteq> 0\<rangle>"
*** At command "with".

I have switched the angle brackets to parens and to blanks and still get a similar message. What have I missed?
(You get to this paper from the Isabelle Documentation page via the "Tutorial of Function Definitions" link)

Thanks, Tim

view this post on Zulip Email Gateway (Aug 18 2022 at 12:40):

From: Tobias Nipkow <nipkow@in.tum.de>
I'm afraid that what looks similar to \<langle> ... \<rangle> are French
quotes which is what Isabelle's latex converter turns two backquotes
into: .... So that's what you need to type. A bit confusing, I agree.

Tobias

TIMOTHY KREMANN wrote:


Last updated: Nov 21 2024 at 12:39 UTC