Zulip Chat Archive
Stream: lean4
Topic: Can a generalize equality hypothesis be converted into a let
Malcolm Langfield (Dec 26 2023 at 14:01):
When you generalize h : _ = x
, you get an equality h
, which can then be inlined into your proof whenever you like, with subst h
. Is it possible to convert h
into a let
binding? If x
occurs in many places in the target, and the LHS of h
is quite large, this crowds up the infoview a lot and I'd like to avoid that if possible.
Yaël Dillies (Dec 26 2023 at 14:03):
Do you know about tactic#set ?
Malcolm Langfield (Dec 26 2023 at 14:07):
Oh I think maybe that's exactly what I want, thanks!
Last updated: May 02 2025 at 03:31 UTC