2016-07-12 10:22:58 UTC
lemma "¬ False"
proof (simp only: ) (*<*) oops (*>*)
which leads to the
Failed to apply initial proof method
error message in the interactive development.
oops recovers from the error and I can write other theorem statements.
The Isabelle/Isar reference manual writes:
A typical application of oops is to explain Isar proofs within the system
in conjunction with the document preparation tools of Isabelle described in
chapter 4. Thus partial or even wrong proof attempts can be discussed in a
logically sound manner. Note that the Isabelle LaTeX macros can be easily
adapted to print something like ... instead of the keyword oops.
When I use
isabelle build D .
I get the same error as above and no output is produced.
I tried o quick_and_dirty but in vain.
How can I include failed proof attempts into a proof document?
I use Isabelle2016.