Merge branch 'main' of github.com:leanprover-community/lean4game

CREATE_GAME.md

@@ -12,7 +12,7 @@ Title "add_zero"
 
 Introduction ""                       -- optional. Is displayed throughout the level.
 
-Statement MyNat.zero_add              -- optional. if name is specified, the lemma will be added to the inventory
+Statement MyNat.zero_add              -- optional. if name is specified, the lemma will be added to the inventory in future levels.
 "description in mathematical term"    -- optional. mathematical description
     (n : ℕ) : n + 0 = n := by         -- statement: exactly how it would be in a `theorem`. (bug: forgets about implicit arguments)
   intro k
@@ -29,8 +29,8 @@ Statement MyNat.zero_add              -- optional. if name is specified, the lem
 LemmaTab "Nat"                        -- optional. specify the tab that's open in the lemma inventory
 
 NewLemma add_zero                     -- optional. add lemma to inventory
-NewTactic rw                          -- optional. add lemma to inventory
-NewDefinition Nat                     -- optional. add lemma to inventory
+NewTactic rw                          -- optional. add tactic to inventory
+NewDefinition Nat                     -- optional. add definition to inventory
 DisabledLemma add_zero                -- optional. disable specific lemmas
 DisabledTactic tauto simp             -- optional. disable tactics
 OnlyLemma add_zero                    -- optional. disable all lemmas but these
@@ -92,6 +92,6 @@ Notes:
 * The lemma name must be **fully qualified**. The string display name can be arbitrary.
 * Tactics must have their proper name. use `TacticDoc «have» ""` if it does not work
   without french quotes.
-* Definition names can be arbitrary. E.g. I used `DefinitionDoc Symbol.Fun as "fun x ↦ x"` once.
+* Definition names can be arbitrary. E.g. I used `DefinitionDoc Symbol.Fun as "fun x ↦ x" "(missing)"` once.
 
 There will be features added to get automatic information from mathlib!

server/nng/NNG/MyNat/AddCommMonoid.lean

@@ -12,7 +12,6 @@ namespace MyNat
 -- precisely the oddball (to my eyes) classes which nat was an instance of,
 -- but I think they would make great collectibles.
 
-
 -- instance addSemigroup : AddSemigroup ℕ :=
 -- {
 --   zero := 0
@@ -20,4 +19,4 @@ namespace MyNat
 -- }
 -- MyNat.addMonoid        -- (after level 2)
 -- MyNat.addCommSemigroup -- (after level 4)
--- MyNat.addCommMonoid    -- (after level 4)
+-- MyNat.addCommMonoid    -- (after level 4)

server/nng/NNG/MyNat/LE.lean

@@ -10,7 +10,7 @@ def le (a b : ℕ) :=  ∃ (c : ℕ), b = a + c
 -- the existence definition.
 
 -- | le 0 _
--- | le (succ a) (succ b) = le ab 
+-- | le (succ a) (succ b) = le ab
 
 -- notation
 instance : LE MyNat := ⟨MyNat.le⟩
@@ -19,4 +19,4 @@ instance : LE MyNat := ⟨MyNat.le⟩
 
 theorem le_iff_exists_add (a b : ℕ) : a ≤ b ↔ ∃ (c : ℕ), b = a + c := Iff.rfl
 
-end MyNat
+end MyNat