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Zulip Chat Archive

Stream: mathlib4

Topic: solve two goals with [tac1,tac2]


Kevin Buzzard (Nov 18 2022 at 22:02):

Occasionally I see ported files which use lean 3's [tac1,tac2] trick to solve two goals with two tactics in tactic mode. Does this exist in Lean 4? Currently I'm just working around it in the obvious way.

Mario Carneiro (Nov 18 2022 at 22:04):

import Tactic.SeqFocus


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