rename [New/Only/Disabled][Tactic/Lemma/Definition]

server/testgame/TestGame/Levels/Function/L02_Let.lean

@@ -58,8 +58,8 @@ show that $f(x) = x^2 + 2x + 1$.
   unfold f
   ring
 
-NewTactics «let»
-OnlyTactics «let» intro unfold ring
+NewTactic «let»
+OnlyTactic «let» intro unfold ring
 
 HiddenHint : ∀ x, f x = x ^ 2 + 2 * x + 1 =>
 "Fang zuerst wie immer mit `intro x` an."

server/testgame/TestGame/Levels/Function/L03_Composition.lean

@@ -19,4 +19,4 @@ Statement
     (U T V : Type _) (f : U → V) (g : V → T) (x : U) : (g ∘ f) x = g (f x)  := by
   simp only [Function.comp_apply]
 
-NewLemmas Function.comp_apply
+NewLemma Function.comp_apply

server/testgame/TestGame/Levels/Function/L06_Piecewise.lean

@@ -57,9 +57,9 @@ Statement ""
   unfold f
   ring
 
-NewTactics funext by_cases simp_rw linarith
+NewTactic funext by_cases simp_rw linarith
 
-NewLemmas not_le if_pos if_neg
+NewLemma not_le if_pos if_neg
 
 
 Hint : f ∘ g = g ∘ f =>

server/testgame/TestGame/Levels/Function/L07'_Injective.lean

@@ -29,8 +29,8 @@ Statement "" : Injective (fun (n : ℤ) ↦ n^3 + (n + 3)) := by
   intro a b
   simp
 
-NewDefinitions Injective
-NewLemmas StrictMono.injective StrictMono.add Odd.strictMono_pow
+NewDefinition Injective
+NewLemma StrictMono.injective StrictMono.add Odd.strictMono_pow
 
 
 Hint : Injective fun (n : ℤ) => n ^ 3 + (n + 3) =>

server/testgame/TestGame/Levels/Function/L07_Injective.lean

@@ -22,7 +22,7 @@ Statement "" : Injective (fun (n : ℤ) ↦ n + 3) := by
   intro a b
   simp
 
-NewDefinitions Injective
+NewDefinition Injective
 
 Hint : Injective (fun (n : ℤ) ↦ n + 3) =>
 "**Robo**: `Injective` ist als `∀ \{a b : U}, f a = f b → a = b`