*To*: Isabelle Users <isabelle-users at cl.cam.ac.uk>*Subject*: [isabelle] Splitting if-then-else in assumptions?*From*: Tobias Nipkow <nipkow at in.tum.de>*Date*: Fri, 4 Mar 2016 11:32:55 +0100*User-agent*: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:38.0) Gecko/20100101 Thunderbird/38.6.0

split: if_split_asm (* was named split_if_asm until recently *)

Of course this only applies if the user is aware of the existence of if_split_asm!

- The number of lines mentioning if_split_asm has dropped from 334 to 112. - The number of lines deleting if_split_asm has gone up from 18 to 54

- Otherwise local "split del" modifiers did the job. - In a few places proofs became simpler. In the AFP I only tested 2 articles. Launchbury: the 4 occurrences of if_split_asm could be removed, that's all.

Any views? Tobias

**Attachment:
smime.p7s**

**Follow-Ups**:**Re: [isabelle] Splitting if-then-else in assumptions?***From:*Thomas Sewell

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