add comment about alternative le definition

2023-04-25 18:09:20 +01:00
parent a116a10050
commit 79c04a1bff
1 changed files with 3 additions and 0 deletions
@@ -5,6 +5,9 @@ namespace MyNat
 def le (a b : ℕ) :=  ∃ (c : ℕ), b = a + c

 -- Another choice is to define it recursively: 
+-- note: I didn't choose this option because tests showed
+-- that mathematicians found it a lot more confusing than
+-- the existence definition.
 -- | le 0 _
 -- | le (succ a) (succ b) = le ab