0e49576fe4
This PR makes `#guard_msgs` to treat `trace` messages separate from `info`, `warning` and `error`. It also introduce the ability to say `#guard_msgs (pass info`, like `(drop info)` so far, and also adds `(check info)` as the explicit form of `(info)`, for completeness. Fixes #8266
12 lines
285 B
Text
12 lines
285 B
Text
set_option trace.Elab true
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/--
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trace: α✝ : Sort u_1
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a b : α✝
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h : a = b
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⊢ (fun x => x) a = b
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-/
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#guard_msgs in
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theorem ex (h : a = b) : (fun x => x) a = b := by
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simp (config := { beta := false, failIfUnchanged := false })
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trace_state
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simp (config := { beta := true }) [h]
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