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authorHannes Schulze <contact@haschu.me>2026-04-14 16:04:44 +0200
committerHannes Schulze <contact@haschu.me>2026-04-15 13:22:40 +0200
commita5ff8efe5b5e314e0aa759318e5fb194e066f612 (patch)
tree4d13dd84ac4ced2360a51799f0e5c846bd733872 /Nominal/Support.lean
parent43942e78f4b3ed4cfca3b508f06161d0983c545e (diff)
update lean
Diffstat (limited to 'Nominal/Support.lean')
-rw-r--r--Nominal/Support.lean2
1 files changed, 1 insertions, 1 deletions
diff --git a/Nominal/Support.lean b/Nominal/Support.lean
index 7888a68..fde20c7 100644
--- a/Nominal/Support.lean
+++ b/Nominal/Support.lean
@@ -79,7 +79,7 @@ lemma support_inter {x : X} {S T : Set ๐”ธ} : HasSupport ๐”ธ x S โ†’ S.Finite
simp)
let m' := (S \ T).restrict m
rw [Set.injOn_iff_injective, show (S \ T).restrict m = m' by rfl] at h_m_injective
- obtain h_m_inv := Function.partialInv_of_injective h_m_injective
+ obtain h_m_inv := h_m_injective.isPartialInv
have h_m_image : m '' (S \ T) โІ (ฯ€'.supp โˆช S โˆช T)แถœ :=
Set.image_subset_iff.mpr h_m_preimage