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

refactor: Small simplification

Browse source
This commit is contained in:
jstoobysmith 2025-02-07 10:27:03 +00:00
parent d472604aec
commit cb2f8a30bf
1 changed files with 2 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

4
HepLean/PerturbationTheory/WickContraction/Sign/Join.lean
View file

@ -426,8 +426,8 @@ lemma join_sign_induction {φs : List 𝓕.FieldOp} (φsΛ : WickContraction φs
choice does not matter, and that contracted pairs can be brought together in any order. -/
lemma join_sign {φs : List 𝓕.FieldOp} (φsΛ : WickContraction φs.length)
(φsucΛ : WickContraction [φsΛ]ᵘᶜ.length) (hc : φsΛ.GradingCompliant) :
(join φsΛ φsucΛ).sign = φsΛ.sign * φsucΛ.sign := by
exact join_sign_induction φsΛ φsucΛ hc (φsΛ).1.card rfl
(join φsΛ φsucΛ).sign = φsΛ.sign * φsucΛ.sign :=
join_sign_induction φsΛ φsucΛ hc (φsΛ).1.card rfl
/-- For a list `φs` of `𝓕.FieldOp`, a Wick contraction `φsΛ` of `φs`,
and a Wick contraction `φsucΛ` of `[φsΛ]ᵘᶜ`,