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strict and hidden options

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This commit is contained in:
Alexander Bentkamp
2023-03-10 10:11:36 +01:00
parent 625e224d1e
commit b3a38ee080
4 changed files with 40 additions and 12 deletions
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server/testgame/TestGame/Levels/Function/L11_Inverse.lean
+3 -3
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@@ -21,13 +21,13 @@ open Function
Statement bijective_iff_has_inverse "" {A B : Type} (f : A → B) :
Bijective f ↔ ∃ g, LeftInverse g f ∧ RightInverse g f := by
Hint "constructor"
Hint (hidden := true) "constructor"
constructor
Hint "intro h" -- does not show
intro h
Hint "rcases h with ⟨h₁, h₂⟩" -- shows too late: 1, 2 after
rcases h with ⟨h₁, h₂⟩
Hint "let g := fun x => (h₂ x).choose" -- shows correct + 1 after
Hint (strict := true) "let g := fun x => (h₂ x).choose" -- shows correct + 1 after
let g := fun x => (h₂ x).choose
Hint "use g"
use g
@@ -53,7 +53,7 @@ Statement bijective_iff_has_inverse "" {A B : Type} (f : A → B) :
constructor
Hint "intro a b hab"
intro a b hab
Hint "have h : g (f a) = g (f b)"
Hint (strict := true) "have h : g (f a) = g (f b)"
have h : g (f a) = g (f b)
Hint "apply congrArg"
apply congrArg