max/lean4-htt
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions 2

chore: add simp rule Nat.lt x y = (x < y)

Browse source
This commit is contained in:
Leonardo de Moura 2021-10-06 16:37:58 -07:00
parent 7f660af4c6
commit 9d0fe5cbf9
1 changed files with 3 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
src/Init/Data/Nat/Basic.lean
View file

@ -47,6 +47,9 @@ namespace Nat
@[simp] theorem add_eq : Nat.add x y = x + y :=
rfl
@[simp] theorem lt_eq : Nat.lt x y = (x < y) :=
rfl
@[simp] protected theorem zero_add : ∀ (n : Nat), 0 + n = n
| 0 => rfl
| n+1 => congrArg succ (Nat.zero_add n)