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Project-declaredLean 4.32.0

Koszul Sign perm eq append

Wick.koszulSign_perm_eq_append

Project documentation

Gives a factor of - 1 for every fermion-fermion (q is 1) crossing that occurs when sorting a list of based on r. -/ def koszulSign (q : š“• ā†’ FieldStatistic) (le : š“• ā†’ š“• ā†’ Prop) [DecidableRel le] : List š“• ā†’ ā„‚ | [] => 1 | a :: l => koszulSignInsert q le a l * koszulSign q le l @[simp] lemma koszulSign_singleton (q : š“• ā†’ FieldStatistic) (le : š“•...

physicsquantum field theoryrelativity

Source project: Physlib

Person-level attribution pending.

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