34bd6e8bfd
This PR improves the error messages produced by the `split` tactic, including suggesting syntax fixes and related tactics with which it might be confused. Note that, to avoid clashing with the new error message styling conventions used in these messages, this PR also updates the formatting of the message produced by `throwTacticEx`. Closes #6224
36 lines
867 B
Text
36 lines
867 B
Text
opaque P : Nat → Prop
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opaque Q : Nat → Prop
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theorem Pall : Q x → P x := sorry
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/-- info: Try this: exact Pall h -/
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#guard_msgs (info) in
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example (h : Q x) (_ : x > 0) : P x := by
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try?
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/-- info: Try this: · intros; expose_names; exact Pall h -/
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#guard_msgs (info) in
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example: Q x → True → P x := by
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try?
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/-- info: Try this: · intros; expose_names; exact Pall h_1 -/
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#guard_msgs (info) in
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example: True → Q x → True → P x := by
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try?
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theorem Qall {x y : Nat} : Q x := sorry
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/--
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error: Tactic `try?` failed: consider using `grind` manually, or `try? +missing` for partial proofs containing `sorry`
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x : Nat
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⊢ Q x
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-/
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#guard_msgs (error) in
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example : Q x := by
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try? -- should fail, we cannot elaborate `exact Qall`
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/-- info: Try this: · expose_names; exact Pall h -/
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#guard_msgs (info) in
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example (_ : Q x) (_ : x > 0) : P x := by
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try?
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