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
27 lines
656 B
Text
27 lines
656 B
Text
set_option linter.unusedVariables false
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opaque f (x y : Nat) : Nat
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opaque g (x : Nat) : Nat
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theorem ex1 (x : Nat) (h₁ : f x x = g x) (h₂ : g x = x) : f x (f x x) = x := by
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fail_if_success simp
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simp [*]
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theorem ex2 (x : Nat) (h₁ : f x x = g x) (h₂ : g x = x) : f x (f x x) = x := by
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simp [*]
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axiom g_ax (x : Nat) : g x = 0
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/--
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trace: x y : Nat
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h₁ : f x x = g x
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h₂ : g x < 5
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⊢ g x + g x = 0
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-/
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#guard_msgs in
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theorem ex3 (x y : Nat) (h₁ : f x x = g x) (h₂ : f x x < 5) : f x x + f x x = 0 := by
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simp [*, -Nat.add_eq_zero] at *
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trace_state
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have aux₁ : f x x = g x := h₁
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have aux₂ : g x < 5 := h₂
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simp [g_ax]
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