4fe0259354
This makes `exact?%` behave like `by exact?` rather than `by apply?`. If the underlying function `librarySearch` finds a suggestion which closes the goal, use it (and add a code action). Otherwise log an error and use `sorry`. The error is either ```text `exact?%` didn't find any relevant lemmas ``` or ```text `exact?%` could not close the goal. Try `by apply` to see partial suggestions. ``` --- [Zulip](https://leanprover.zulipchat.com/#narrow/stream/287929-mathlib4/topic/Useful.20term.20elaborators/near/434863856) --------- Co-authored-by: Scott Morrison <scott.morrison@gmail.com> |
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