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| author | Andreas Grois <andi@grois.info> | 2024-12-22 23:17:05 +0100 |
|---|---|---|
| committer | Andreas Grois <andi@grois.info> | 2024-12-22 23:17:05 +0100 |
| commit | 406c23a9f6c6a4c7e03f9aad4131921e589623bc (patch) | |
| tree | ef4917104f505eb7fda1af9f7b3390c78bc38148 /Common/Function.lean | |
| parent | b37fc3089eb0ca8fc37a82ae6d6071b0accbca19 (diff) | |
Day 17, part 1 (hopefully)
Diffstat (limited to 'Common/Function.lean')
| -rw-r--r-- | Common/Function.lean | 3 |
1 files changed, 3 insertions, 0 deletions
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 |