Stream: Beginner Questions

Topic: Unfolding definition for conclusion only


view this post on Zulip Chengsong Tan (Nov 14 2023 at 18:46):

What's the command for unfolding a definition in the conclusion, but leaving things unchanged in the premises? Say converting
[| P x; Q x' |] ==> P x' to [| P x; Q x' |] ==> P's_def x' .

Thanks a lot,
Chengsong

view this post on Zulip Jan van Brügge (Nov 14 2023 at 22:11):

You can use subst, if you need to do it multiple times apply (subst thms)+

view this post on Zulip Chengsong Tan (Nov 15 2023 at 19:20):

Jan van Brügge said:

You can use subst, if you need to do it multiple times apply (subst thms)+

Thank you, Jan!


Last updated: Apr 28 2024 at 08:19 UTC