DibyashanuPati/PhysLean
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

refactor: Lint

Browse source
This commit is contained in:
jstoobysmith 2025-02-03 05:39:48 +00:00
parent 006e29fd08
commit fca3f02eca
16 changed files with 416 additions and 352 deletions
Download patch file Download diff file Expand all files Collapse all files

6
HepLean/PerturbationTheory/WickContraction/Basic.lean
View file

@ -52,10 +52,10 @@ lemma card_zero_iff_empty (c : WickContraction n) : c.1.card = 0 ↔ c = empty :
lemma exists_pair_of_not_eq_empty (c : WickContraction n) (h : c ≠ empty) :
∃ i j, {i, j} ∈ c.1 := by
by_contra hn
simp at hn
simp only [not_exists] at hn
have hc : c.1 = ∅ := by
ext a
simp
simp only [Finset.not_mem_empty, iff_false]
by_contra hn'
have hc := c.2.1 a hn'
rw [@Finset.card_eq_two] at hc
@ -148,7 +148,7 @@ lemma congrLift_bijective {n m : ℕ} {c : WickContraction n} (h : n = m) :
/-- Given a contracted pair in `c : WickContraction n` the contracted pair
in `congr h c`. -/
def congrLiftInv {n m : ℕ} (h : n = m) {c : WickContraction n} (a : (congr h c).1 ) : c.1 :=
def congrLiftInv {n m : ℕ} (h : n = m) {c : WickContraction n} (a : (congr h c).1) : c.1 :=
⟨a.1.map (finCongr h.symm).toEmbedding, by
subst h
simp⟩