From 406c23a9f6c6a4c7e03f9aad4131921e589623bc Mon Sep 17 00:00:00 2001
From: Andreas Grois <andi@grois.info>
Date: Sun, 22 Dec 2024 23:17:05 +0100
Subject: Day 17, part 1 (hopefully)

---
 Common/Function.lean | 3 +++
 1 file changed, 3 insertions(+)
 create mode 100644 Common/Function.lean

(limited to 'Common/Function.lean')

diff --git a/Common/Function.lean b/Common/Function.lean
new file mode 100644
index 0000000..f497baa
--- /dev/null
+++ b/Common/Function.lean
@@ -0,0 +1,3 @@
+theorem Function.comp_assoc (f : γ → δ) (g : β → γ) (h : α → β) : (f∘g)∘h = f∘g∘h := rfl
+theorem Function.comp_id (f : α → β) : f ∘ id = f := rfl
+theorem Function.id_comp (f : α → β) : id ∘ f = f := rfl
-- 
cgit v1.2.3

